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Home > Encyclopedia > Potassium bromide

Potassium bromide

pharmaceutical raw materials
Potassium bromide structure

Potassium bromide 

structure

Description

White, crystalline granules or pow-der; pungent, strong, bitter, saline taste; somewhathygroscopic.Solu-ble in water and glycerol; slightly soluble in alcoholand ether.


Potassium bromide appears as odorless colorless crystals or white crystalline powder or white granular solid with a pungent bitter saline taste. Aqueous solutions are neutral (pH about 7). (NTP, 1992)|DryPowder; OtherSolid; PelletsLargeCrystals


Potassium bromide appears as odorless colorless crystals or white crystalline powder or white granular solid with a pungent bitter saline taste. Aqueous solutions are neutral (pH about 7). (NTP, 1992)|Potassium bromide is a metal bromide salt with a K(+) counterion.

Potassium bromide Basic Attributes

119

117.882034

231-830-3

OSD78555ZM

77367

DTXSID5025946

Colorless crystals or white granules or powder|Colorless cubic crystals|White, crystalline powder or granules

2827510000

Characteristics

0

-2.99600

White random crystals

2.75 g/cm3 @ Temp: 25 °C

730 °C

1435 °C

1435°C

1.559

H2O: 650 g/L (20 ºC)

2-8°C

175 mm Hg ( 20 °C)

7.14 (vs air)

LD50 orally in Rabbit: > 2000 mg/kg

Odorless

Pungent, strong, bitter, saline

The aqueous solution is neutral.

Hygroscopic|Somewhat hygroscopic

Water soluble.

Non-Redox-Active Inorganic Compounds

POTASSIUM BROMIDE is not in generally strongly reactive. A weak reducing agent, incompatible with oxidizing agents. Also incompatible with salts of mercury and silver. Violent reactions occur with bromine trifluoride. May react with nitrous ether spirit, many alkaloidal salts and starch. May also react with acids (NTP, 1992). Reacts with concentrated sulfuric acid to generate fumes of hydrogen bromide.

Critical temperature = 3520.00 K; critical pressure = 1.1552X10+7 Pa

Safety Information

UN 1744 8/PG 1

2

36/37/38-36

26-45-61-7/9-39-36

TS7650000

Xi

Stable. Incompatible with strong oxidizing agents, strong acids, bromine trifluoride and bromine trichloride.

P280-P305 + P351 + P338-P337 + P313

H319

SRP: Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air quality; potential migration in air, soil or water; effects on animal, aquatic and plant life; and conformance with environmental and public health regulations. If it is possible or reasonable use an alternative chemical product with less inherent propensity for occupational harm/injury/toxicity or environmental contamination.|Product: Offer surplus and non-recyclable solutions to a licensed disposal company. Contact a licensed professional waste disposal service to dispose of this material; Contaminated packaging: Dispose of as unused product.

Incompatible materials: Strong oxidizing agents, Strong acids, Heavy metal salts, Aluminum, Potassium.|/Potassium bromide is/ rapidly attacked by bromine trifluoride ...

USEPA/Office of Pesticide Programs; Reregistration Eligibility Decision Document - Potassium Bromide (April 1991). The RED summarizes the risk assessment conclusions and outlines any risk reduction measures necessary for the pesticide to continue to be registered in the USA.[Available from, as of December 4, 2018: https://iaspub.epa.gov/apex/pesticides/f?p=chemicalsearch:1]|European Chemicals Bureau; IUCLID Dataset, Potassium bromide (7758-02-3) (2000 CD-ROM edition). Summarizes information on use patterns, toxicity, and ecological effects submitted by industry to the European Union.[Available from, as of April 25, 2007: http://esis.jrc.ec.europa.eu/]

Flash point data for this chemical are not available; however, it is probably nonflammable. (NTP, 1992)

|Warning|H315 (15.58%): Causes skin irritation [Warning Skin corrosion/irritation]|P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, and P501|Aggregated GHS information provided by 546 companies from 15 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]|P264, P280, P305+P351+P338, and P337+P313

SMALL SPILLS AND LEAKAGE: If you spill this chemical, you should dampen the solid spill material with water, then transfer the dampened material to a suitable container. Use absorbent paper dampened with water to pick up any remaining material. Seal your contaminated clothing and the absorbent paper in a vapor-tight plastic bag for eventual disposal. Wash all contaminated surfaces with a soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned. STORAGE PRECAUTIONS: You should store this chemical under refrigerated temperatures, and protect it from moisture. Keep it away from oxidizing materials. If possible, it would be prudent to store this compound under inert atmosphere. (NTP, 1992)

RECOMMENDED RESPIRATOR: Where the neat test chemical is weighed and diluted, wear a NIOSH-approved half face respirator equipped with an organic vapor/acid gas cartridge (specific for organic vapors, HCl, acid gas and SO2) with a dust/mist filter. (NTP, 1992)|Eye/face protection: Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).|Skin protection: Handle with gloves.|Body Protection: Complete suit protecting against chemicals. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace.|Respiratory protection: For nuisance exposures use type P95 (US) or type P1 (EU EN 143) particle respirator. For higher level protection use type OV/AG/P99 (US) or type ABEK-P2 (EU EN 143) respirator cartridges. Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU).

Suitable extinguishing media: Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.|Advice for firefighters: Wear self-contained breathing apparatus for firefighting if necessary.

ACCIDENTAL RELEASE MEASURES: Personal precautions, protective equipment and emergency procedures: Use personal protective equipment. Avoid dust formation. Avoid breathing vapors, mist or gas. Ensure adequate ventilation. Avoid breathing dust. Environmental precautions: Do not let product enter drains. Methods and materials for containment and cleaning up: Pick up and arrange disposal without creating dust. Sweep up and shovel. Keep in suitable, closed containers for disposal.

ACCIDENTAL RELEASE MEASURES: Personal precautions, protective equipment and emergency procedures: Use personal protective equipment. Avoid dust formation. Avoid breathing vapors, mist or gas. Ensure adequate ventilation. Avoid breathing dust. Environmental precautions: Do not let product enter drains.|Precautions for safe handling: Further processing of solid materials may result in the formation of combustible dusts. The potential for combustible dust formation should be taken into consideration before additional processing occurs.Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Provide appropriate exhaust ventilation at places where dust is formed.|Appropriate engineering controls: Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.|Gloves must be inspected prior to use. Use proper glove removal technique (without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands.|SRP: Local exhaust ventilation should be applied wherever there is an incidence of point source emissions or dispersion of regulated contaminants in the work area. Ventilation control of the contaminant as close to its point of generation is both the most economical and safest method to minimize personnel exposure to airborne contaminants. Ensure that the local ventilation moves the contaminant away from the worker.

Toxicity

IDENTIFICATION AND USE: Potassium bromide is a solid. Potassium bromide may be utilized for the production of photographic-grade silver bromide, in process engraving, and lithography. Other uses for potassium bromide are in clear completion fluids in the petroleum industry, as a pharmaceutical intermediate, and in the manufacture of fibers. It has been used therapeutically in human and veterinary medicine. HUMAN STUDIES: A 3-year-old girl experienced bromoderma tuberosum following potassium bromide treatment for epilepsy. The symptoms disappeared after reduction of the bromide dose. Two iodine-sensitive women in whom potassium bromide solution was used as a radiocontrast agent for retrograde pyelography developed similar clinical conditions culminating in renal failure. Renal failure was due to upper urinary tract obstruction from fibrosis and fat necrosis in each case. Ingestion of potassium bromide at 12-50 g/man (8 cases) caused vomiting, diarrhea, gastritis, anuria, acute nephrosis, uremia, degeneration of neurons and proximal tubules of kidney, fatty degeneration of kidney and liver, edema in brain and kidney, hemolysis, then death 5 days later. ANIMAL STUDIES: Potassium bromide, phenobarbital, or a combination of both is commonly used in the treatment of canine epilepsy. Several cases of clinical pancreatitis have been reported in dogs after treatment with potassium bromide. In a retrospective study, at least 10% of dogs receiving potassium bromide/phenobarbital combination therapy, compared with 0.3% of dogs receiving phenobarbital monotherapy, had probable pancreatitis. Pancreatitis may be a more frequent and more serious adverse effect of potassium bromide/phenobarbital combination therapy than has been reported previously. Bromide toxicosis was diagnosed in an 8-year-old Labrador Retriever that had been treated for epilepsy with potassium bromide, at a dosage of 29 mg/kg of body weight/d. Clinical signs included hind limb weakness, ataxia, and disorientation. Renal insufficiency, diagnosed by determination of endogenous creatinine clearance, was believed to be responsible for the development of bromide toxicosis in this dog. Two cases of panniculitis associated with administration of potassium bromide in dogs are reported. Both dogs were treated with potassium bromide for idiopathic epilepsy for over 1 year. Dose increases in both cases were associated with panniculitis, characterized by painful subcutaneous nodules in a generalized distribution over the trunk. Nodule eruption waxed and waned in one dog and was persistent in the other. In both cases, panniculitis was accompanied by lethargy and pyrexia. ECOTOXICITY STUDIES: The effects of potassium bromide on the aquatic organisms were far smaller than those of potassium bromate and sodium bromate.

Bromide treatment was successful in controlling seizures in an 11-year-old Dachshund with epilepsy and presumptive phenobarbital-associated hepatopathy. Because bromide does not induce liver enzyme activity and does not seem to be hepatotoxic, it can be used to control seizures in dogs with concurrent epilepsy and hepatic disease. In this dog, institution of a special calculolytic diet with high chloride content was associated with a decrease in serum bromide concentrations and the recurrence of seizures. High chloride intake increases the elimination of bromide in dogs, leading to higher dosage requirements for bromide in dogs fed high-chloride diets.

LD50 Rat oral 3070 mg/kg|LD50 Mouse oral 3120 mg/kg|LD50 Mouse ip 1030 mg/kg|LD50 Guinea pig ip 980 mg/kg

/AQUATIC SPECIES/ Acute toxic effects of potassium bromate, sodium bromate and potassium bromide on luminescent bacteria, water flea, green alga and zebrafish were studied using standard toxic testing methods. The results showed that the pollutants had no effect on the luminous intensity of luminescent bacteria. The 96 hr EC50 of potassium bromate on Scenedesmus obliquus was 738.18 mg/L, 48 hr EC50 on Daphnia magna and Moina was 154.01 mg/L was 161.80 mg/L, while 48 hr LC50 was 198 52 mg/L, 175.68 mg/L, and 96 hr LC50 on zebrafish was 931.4 mg/L. The 96 hr EC50 of sodium bromate on Scenedesmus obliquus was 540.26 mg/L, 48 hr EC50 Daphnia magna and Moina was 127.90 mg/L, 111.07 mg/L, while 48 hr LC50 was 161.80 mg/L, 123.47 mg/L, and 96 hr LC50 on zebrafish was 1065.6 mg/L. But the effects of potassium bromide on the above several kinds of aquatic organisms were far smaller than those of potassium bromate and sodium bromate. The toxic effects on test organisms were due to the impacts of bromate after the comparison of different pollutants, and the effects were more obvious with the increase of exposure time. The order of sensitivity to the toxic effects of bromate was Daphnia magna, Moina > Scenedesmus obliquus > zebrafish > Chlorella vulgaris, luminescent bacteria.

Potassium bromide's production and use in photography for making dry plates and papers, process engraving, analytical standard, redox reagent, in veterinary and human pharmaceuticals(1,2) and in special antimicrobial soaps used on surfaces(2,3) may result in its release to the environment through various waste streams(SRC).

According to the 2016 TSCA Inventory Update Reporting data, 6 reporting facilities estimate the number of persons reasonably likely to be exposed during the manufacturing, processing, or use of potassium bromide in the United States may be as low as 10 workers and as high as 500 workers per plant; the data may be greatly underestimated due to confidential business information (CBI) or unknown values(1).

Drug Information

/EXPL THER/ A seminal study recently demonstrated that bromide (Br-) has a critical function in the assembly of type IV collagen in basement membrane (BM), and suggested that Br- supplementation has therapeutic potential for BM diseases. Because salts of bromide (KBr and NaBr) have been used as antiepileptic drugs for several decades, repositioning of Br- for BM diseases is probable. However, the effects of Br- on glomerular basement membrane (GBM) disease such as Alport syndrome (AS) and its impact on the kidney are still unknown. In this study, we administered daily for 16 weeks 75 mg/kg or 250 mg/kg (within clinical dosage) NaBr or NaCl (control) via drinking water to 6-week-old AS mice (mouse model of X-linked AS). Treatment with 75 mg/kg NaBr had no effect on AS progression. Surprisingly, compared with 250 mg/kg NaCl, 250 mg/kg NaBr exacerbated the progressive proteinuria and increased the serum creatinine and blood urea nitrogen in AS mice. Histological analysis revealed that glomerular injury, renal inflammation and fibrosis were exacerbated in mice treated with 250 mg/kg NaBr compared with NaCl. The expressions of renal injury markers (Lcn2, Lysozyme), matrix metalloproteinase (Mmp-12), pro-inflammatory cytokines (Il-6, Il-8, Tnf-a, Il-1beta) and pro-fibrotic genes (Tgf-beta, Col1a1, a-Sma) were also exacerbated by 250 mg/kg NaBr treatment. Notably, the exacerbating effects of Br- were not observed in wild-type mice. These findings suggest that Br- supplementation needs to be carefully evaluated for real positive health benefits and for the absence of adverse side effects especially in GBM diseases such as AS. /Sodium bromide/|/EXPL THER/ Potassium bromide was tried for two children with daily convulsive focal motor seizures with unconsciousness and focal motor seizure status. The treatment resulted in complete cessation of the attacks. It has been reported that bromide is effective for generalized tonic-clonic seizures and not for complex partial seizures, such as convulsive focal motor seizures with unconsciousness. However,/the authors'/ experiences provides evidence that bromide is one of the useful therapeutic agents for intractable symptomatic localization-related epilepsy.|/EXPL THER/ A 3-month-old male and a 4-month-old female infant with intractable seizures were diagnosed as having malignant migrating partial seizures in infancy (MMPSI) with developmental arrest on the basis of characteristics of symptoms, clinical courses and EEGs. We treated these two patients with potassium bromide (80 mg/kg) after conventional antiepileptic drugs failed to adequately control the seizures. The potassium bromide therapy resulted in complete control of seizures in one patient, and more than 95% reduction in seizure frequency in the other.|/EXPL THER/ BACKGROUND: Topical over-the-counter remedies exist to aid in the control of seborrheic dermatitis and chronic dandruff on a superficial level. Low-dose systemic oral nickel and bromide therapy has shown promise in providing improvement and eventual clearing of the disease. OBJECTIVE: The purpose of this study was to further evaluate the effect of an orally administered low-dose, homeopathic mineral therapy (Potassium bromide 1X, Sodium bromide 2X, Nickel sulfate 3X, Sodium chloride 6X) on seborrheic dermatitis and chronic dandruff. METHODS: Forty-one patients with seborrheic dermatitis and/or chronic dandruff were assigned to one of two treatment groups: Active (containing the medication) or placebo (vehicle). Study medication was administered in a placebo-controlled, randomly-selected, double-blind study for 10 weeks. At the end of 10 weeks all patients crossed over to the active medication, under a different label for an additional 10 weeks in an open study format. RESULTS: Twenty-nine patients completed the 10-week blinded portion of the study. After 10 weeks of treatment, the disease state of the active patients improved significantly over that of the placebo patients (p<0.04). The placebo patients' condition before and after crossover to active treatment was also evaluated, showing significant improvement (p<0.01) 10 weeks after crossing over to active medication. CONCLUSION: Oral therapy using a low-dose homeopathic preparation combining Potassium bromide 1X, Sodium bromide 2X, Nickel sulfate 3X, and Sodium chloride 6X, provides significant improvement in seborrheic dermatitis and dandruff after 10 weeks of dosing.|For more Therapeutic Uses (Complete) data for Potassium bromide (6 total), please visit the HSDB record page.

Thirty-six children with epilepsy resistant to conventional treatment were treated with bromides in addition to the current therapy. Six out of 19 cases with prevailingly or exclusively generalized tonic-clonic seizures became seizure-free and in 9 cases a reduction in seizure frequency of more than 50% was achieved. Freedom from seizures could not be obtained in 13 cases, who had frequent minor seizures in addition to generalized tonic-clonic seizures. In some, minor seizures were even activated. Tonic and focal seizures showed no response. Side effects were observed in one-third of the cases (acne, loss of appetite, loss of weight, fatigue) but in no case they did become intolerable. Fifty to 80 mg potassium bromide per kg body weight seems to be an effective daily dose range. There is a preferential indication of bromides for patients suffering from early onset epilepsy with generalized tonic-clonic seizures and/or alternating hemi-grand mal, for whom other treatment is ineffective. This disorder is characterized by a high familial incidence of epileptic seizures, onset between 6 months and 3 years of age, normal development until the onset of seizures, generalized tonic-clonic seizures and often alternating hemi-grand mal, seizure precipitation by fever, and occasional combination with or transition to myoclonic-astatic and/or myoclonic seizures. EEG is often normal or shows slight slowing in the initial phase; later it shows theta rhythms and generalized spikes and waves. Especially, if the onset is during the first year of life, the course of the epilepsy is often unfavorable.|VET: This medication should be used cautiously in older animals as they will be more susceptible to adverse effects. This medication is not indicated for use in cats.|VET: Dogs may experience drowsiness when taking, but this will generally go away after approximately 3 weeks. Increased hunger, thirst, urination, vomiting, constipation, anorexia, and uncoordinated movements may occur. During the load in dose increased nausea may be experienced.|VET: Personality changes have been occasionally reported in dogs on bromide, including attention seeking, irritability or aggression, and aimless pacing.|VET: There is no information on the relative frequency of pancreatitis in dogs associated with bromide therapy alone. However, pancreatitis has been reported to be more frequent in dogs on concurrent phenobarbital and bro-mide therapy than dogs on phenobarbital alone.

OBJECTIVE: Several methods have been described to measure adherence to prescribed drug therapy. However, most of these have been shown to be inaccurate. Bromide is an anion that is readily absorbed in the gut and has an elimination half-life of about 12 days. In the present study, we investigated the pharmacokinetic properties of bromide with the objective to use it as a measure of drug adherence. METHODS: Three groups of each 8 healthy volunteers took 15, 24 or 30 mg potassium bromide, respectively, daily for 20 weeks. Serum concentrations of bromide were measured every two weeks. RESULTS: There was a linear relationship between the daily dosage taken and the mean increase of bromide concentration. In every group considerable inter-individual variability was seen. Correction for body weight resulted in an improved correlation between daily bromide dose and increase in concentration (r=0.78, p<0.01). CONCLUSIONS: Unfortunately, the inter-individual variability in clearance of bromide was considerable. This limits the use of bromide to primarily measuring adherence in individual patients during long term follow-up. Bromide appears to be a potentially useful marker to be added to drugs for assessment of individual adherence to long term drug therapy. This needs to be investigated in various patients, particularly for patients with relatively asymptomatic diseases (e.g. hypertension).|OBJECTIVE: To determine the pharmacokinetics of potassium bromide (KBr) in horses after single and multiple oral doses. ANIMALS: Twelve adult Standardbred and Thoroughbred mares. PROCEDURE: Horses were randomly assigned to two treatment groups. Group 1 horses were given a single oral dose of 120 mg/kg potassium bromide. Part 2 of the study evaluated a loading dose of 120 mg/kg KBr daily by stomach tube for 5 days, followed by 40 mg/kg daily in feed for 7 days. Serum concentrations of KBr were measured to construct concentration versus time curves and to calculate pharmacokinetic parameters. Treated horses were monitored twice daily by clinical examination. Serum concentrations of sodium, potassium and chloride ions and partial pressures of venous blood gases were determined. RESULTS: Maximum mean serum concentration following a single dose of KBr (120 mg/kg) was 423 +/- 22 ug/mL and the mean elimination half-life was 75 +/- 14 hr. Repeated administration of a loading dose of KBr (120 mg/kg once daily for 5 day) gave a maximum serum concentration 1639 +/- 156 ug/mL. The administration of lower, maintenance doses (40 mg/kg once daily) was associated with decreased serum bromide concentrations, which plateaued at approximately 1000 ug/mL. Administration of KBr was associated with significant but transient changes in serum potassium and sodium concentrations, and possible changes in base excess and plasma bicarbonate concentrations. High serum concentrations of bromide were associated with an apparent increase in serum chloride concentrations, when measured on an ion specific electrode. CONCLUSIONS: and clinical relevance Loading doses of 120 mg/kg daily over 5 days and maintenance doses of approximately 90 mg/kg of KBr administered once daily resulted in serum bromide concentrations consistent with therapeutic efficacy for the management of seizures in other species. The clinical efficacy of this agent as an anticonvulsant medication and/or calmative in horses warrants further investigation.|OBJECTIVE: To determine the pharmacokinetics of bromide in sheep after single intravenous (IV) and oral (PO) doses. PROCEDURE: Sixteen Merino sheep were randomly assigned to two treatment groups and given 120 mg/kg bromide, as sodium bromide IV or potassium bromide PO. Serum bromide concentrations were determined by colorimetric spectrophotometry. RESULTS: After IV administration the maximum concentration (Cmax) was 822.11 +/- 93.61 mg/L, volume of distribution (Vd ) was 0.286 +/- 0.031 L/kg and the clearance (Cl) was 0.836 +/- 0.255 mL/hr/kg. After PO administration the Cmax was 453.86 +/- 43.37 mg/L and the time of maximum concentration (Tmax ) was 108 +/- 125 hr. The terminal half-life of bromide after IV and PO administration was 387.93 +/- 115.35 hr and 346.72 +/- 94.05 hr, respectively. The oral bioavailability (F) of bromide was 92%. No adverse reactions were noted in either treatment group during this study. The concentration versus time profiles exhibited secondary peaks, suggestive of gastrointestinal cyclic redistribution of the drug. CONCLUSIONS AND CLINICAL RELEVANCE: When administered PO, bromide in sheep has a long half-life of approximately 14 days, with good bioavailability. Potassium bromide is a readily available, affordable salt with a long history of medical use as an anxiolytic, sedative and antiseizure therapy in other species. There are a number of husbandry activities and flock level neurological conditions, including perennial ryegrass toxicosis, in which bromide may have therapeutic or prophylactic application.|The pharmacokinetics of a multidose regimen of potassium bromide (KBr) administration in normal dogs was examined. KBr was administered at 30 mg/kg p.o. q 12 hr for a period of 115 days. Serum, urine, and cerebrospinal fluid (CSF) bromide (BR) concentrations were measured at the onset of dosing, during the accumulation phase, at steady-state, and after a subsequent dose adjustment. Median elimination half-life and steady-state serum concentration were 15.2 days and 245 mg/dL, respectively. Apparent total body clearance was 16.4 mL/day/kg and volume of distribution was 0.40 L/kg. The CSF:serum BR ratio at steady-state was 0.77. Dogs showed no neurologic deficits during maintenance dosing but significant latency shifts in waves I and V of the brainstem auditory evoked response were evident. Following a subsequent dose adjustment, serum BR concentrations of approximately 400 mg/dL were associated with caudal paresis in two dogs. Estimated half-life during the accumulation phase was shorter than elimination half-lives reported in other studies and was likely related to dietary chloride content. The range of steady-state concentrations achieved suggests individual differences in clearance and bioavailability between dogs. The described protocol reliably produced serum BR concentrations that are required by many epileptic patients for satisfactory seizure control.

... Sixteen Merino sheep were randomly assigned to two treatment groups and given 120 mg/kg bromide, as sodium bromide IV or potassium bromide PO. ... The terminal half-life of bromide after IV and PO administration was 387.93 +/- 115.35 hr and 346.72 +/- 94.05 hr, respectively. ...|... Horses were randomly assigned to two treatment groups. Group 1 horses were given a single oral dose of 120 mg/kg potassium bromide. Part 2 of the study evaluated a loading dose of 120 mg/kg KBr daily by stomach tube for 5 days, followed by 40 mg/kg daily in feed for 7 days ... . Following a single dose of KBr (120 mg/kg) ... the mean elimination half-life was 75 +/- 14 hr. ...|... Potassium bromide was administered /to dogs/ at 30 mg/kg p.o. q 12 hr for a period of 115 days. ... Median elimination half-life /was/ 15.2 days ... .

SYMPTOMS: Symptoms of exposure to this compound include central nervous system depression and skin eruptions. Other symptoms include vomiting, irritability, ataxia, mental confusion and coma. It may cause drowsiness, mania, hallucinations and skin rashes. It may also cause vertigo, neurological signs, sensory disturbances, increased spinal fluid pressures and, rarely, death. Exposure may lead to dermatitis, urticaria with occasional blepharitis and conjunctivitis, disturbances of color vision, retrobulbar neuritis and eye disturbances such as mydriasis, blurring or indistinctness of vision, apparent movement or wiggling, change in apparent size of objects and, rarely, photophobia and diplopia. It may also lead to depression, profound stupor and psychoses. Nausea, mental dullness, memory lapses and mental derangement may occur. Mental deterioration may also occur. Other symptoms include pulmonary edema, abdominal pain, paralysis, anorexia, tremor, emaciation, headache, pneumonia, slurred speech, delusions and psychotic behavior. Exposure may cause coughing, sore throat, shortness of breath and dizziness. It may irritate the skin, eyes and respiratory tract. Skin contact may cause redness, pain and burns. Eye contact may cause redness and pain. ACUTE/CHRONIC HAZARDS: This chemical is toxic by ingestion and inhalation. It is an irritant of the skin, eyes and respiratory tract. When heated to decomposition it emits toxic fumes of bromine. (NTP, 1992)

EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop. SKIN: IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment. INHALATION: IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used; if not available, use a level of protection greater than or equal to that advised under Protective Clothing. INGESTION: DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. Be prepared to transport the victim to a hospital if advised by a physician. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport the victim to a hospital. (NTP, 1992)

/SRP:/ Immediate first aid: Ensure that adequate decontamination has been carried out. If patient is not breathing, start artificial respiration, preferably with a demand valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR if necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep patient quiet and maintain normal body temperature. Obtain medical attention. /Poisons A and B/|/SRP:/ Basic treatment: Establish a patent airway (oropharyngeal or nasopharyngeal airway, if needed). Suction if necessary. Watch for signs of respiratory insufficiency and assist ventilations if needed. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for pulmonary edema and treat if necessary ... . Monitor for shock and treat if necessary ... . Anticipate seizures and treat if necessary ... . For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with 0.9% saline (NS) during transport ... . Do not use emetics. For ingestion, rinse mouth and administer 5 mL/kg up to 200 mL of water for dilution if the patient can swallow, has a strong gag reflex, and does not drool ... . Cover skin burns with dry sterile dressings after decontamination ... . /Poisons A and B/|/SRP:/ Advanced treatment: Consider orotracheal or nasotracheal intubation for airway control in the patient who is unconscious, has severe pulmonary edema, or is in severe respiratory distress. Positive-pressure ventilation techniques with a bag valve mask device may be beneficial. Consider drug therapy for pulmonary edema ... . Consider administering a beta agonist such as albuterol for severe bronchospasm ... . Monitor cardiac rhythm and treat arrhythmias as necessary ... . Start IV administration of D5W TKO /SRP: "To keep open", minimal flow rate/. Use 0.9% saline (NS) or lactated Ringer's (LR) if signs of hypovolemia are present. For hypotension with signs of hypovolemia, administer fluid cautiously. Watch for signs of fluid overload ... . Treat seizures with diazepam (Valium) or lorazepam (Ativan) ... . Use proparacaine hydrochloride to assist eye irrigation ... . /Poisons A and B/|VET: Potassium bromide overdose (bromism) in the management of canine epilepsy has been known. However, a protocol to reduce bromide concentrations rapidly has not been previously established. The effects of three infusion fluids with different chloride contents on the steady-state serum concentrations of bromide in beagles were determined. After stabilization of the serum bromide concentrations, seven dogs were infused with saline (Na+ 154 mmol/L; Cl- 154 mmol/L), lactated Ringer's (Na+ 131 mmol/L; Cl- 110 mmol/L), or maintenance solutions (Na+ 35 mmol/L; Cl- 35 mmol/L) at a rate of 2 or 10 mL/kg/hr for 5 hr. Serum and urine were collected hourly, and the bromide concentrations were measured. When saline and lactated Ringer's solutions were infused at a rate of 10 mL/kg/hr for 5 hr, serum bromide concentrations were decreased by 14.24% and urine bromide concentrations by 17.63%, respectively. Of all compositions of infusion fluids, only sodium and chloride contents were associated with the decreased serum concentrations and the increased renal clearance of bromide. In summary, saline and lactated Ringer's solutions reduced serum bromide concentrations in a sodium chloride-dependent manner in dogs were found when infused at 10 mL/kg/hr for 5 hr.

/CASE REPORTS/ In recent years potassium bromide has again been used with increasing frequency in the treatment of epilepsy. A 3-year-old girl with bromoderma tuberosum following such treatment is described; the symptoms disappeared after reduction of the bromide dose.|/CASE REPORTS/ Necrotizing panniculitis due to potassium-bromide is a drug induced allergic reaction following stimulation of lymphocytes as demonstrated for the first time by a lymphocyte transformation test (LTT). We named the disease "halogen panniculitis" because of similar generally known reactions to iodides and describe the typical symptoms in three cases. Bromoderma tuberosum tends to be a similar kind of allergy. For the first time pancreatitis to potassium bromide in men has been observed, which has already been described in epileptic dogs treated with potassium bromide.|/CASE REPORTS/ Two iodine-sensitive women in whom potassium bromide solution was used as a radiocontrast agent for retrograde pyelography developed similar clinical conditions culminating in renal failure. Renal failure was due to upper urinary tract obstruction from fibrosis and fat necrosis in each case. ... Different patterns of exposure corresponded with different sites of major damage in the two cases. One patient, who had repeated studies of the pelvicalyceal system with potassium bromide developed papillary necrosis. Systemic exposure to... bromides (in humans) has also been associated with papillary necrosis.|/CASE REPORTS/ A 49-year-old woman who had noted increasing fatigue and found it difficult to concentrate became confused and uncoordinated with rapid speech. Anxious and suffering from insomnia she had for 6 weeks taken a prescription-free bromide-containing drug mixture (daily 0.09 g potassium bromide and 1.8 g sodium bromide), to a total bromide intake of 60 g. The admission diagnosis of chronic bromism was confirmed by a markedly increased serum bromide concentration (325 mg/L). Once she had stopped taking the drug and had increased her salt intake she became symptom-free within 8 days. The case demonstrates that, while chronic bromism has become rare, it should still be included in the differential diagnosis, even after intake of supposedly harmless medication.|For more Human Toxicity Excerpts (Complete) data for Potassium bromide (11 total), please visit the HSDB record page.

KBr

Potassium bromide Use and Manufacturing

Methods of Manufacturing

Solutions of iron bromide and potassium carbonate are mixed and heated, the solution filtered and concentrated, and the bromide crystallized out.|Treatment of iron turnings with a 35% aqueous solution of bromine. Ferrosoferric bromide forms and can be crystallized. The iron bromide is heated to a boil with a slight excess of 15 wt% potassium carbonate solution. This forms a precipitate /potassium bromide/ that is readily filtered with no further purification necessary.|... The reaction of bromine with potassium carbonate and urea is the basis of the process. The first step of the process involves the addition of K2SO4 to the potassium carbonate solution, followed by heating to 80 °C. After the lead-containing precipitate is removed by filtration, the bromine and urea are added, and the temperature and pH are adjusted to 30 °C and 6.0-6.5, respectively. Potassium bromide is recovered by recrystallization after reduction of volume of the reacting solution by evaporation. The sulfate can be removed from the solution by addition of BaBr2.

Uses

manufacture of photographic papers and plates; process engraving. Used as analytical reagent and developer, also used in the pharmaceutical industry; used in the emulsion or formulated developer of motion picture film and photographic film, used as a sedative in medical treatment; used in the photosensitive material industry to make photosensitive film, developer, and film thickening Toners, toners and color photo bleaching agents. Used in medicine as a nerve tranquilizer (tribromine tablets). In addition, it is also used in chemical analysis reagents, transmission of spectroscopy and infrared, special soap making, carving, lithography, etc. Used in the manufacture of photosensitive film developer and film thickening agent. It is also used as a nerve sedative, and it is also used to make special soaps, sculptures and lithography.


Intermediates


Fabric, textile, and leather products not covered elsewhere

Production

1,000,000 - 10,000,000 lb|(1977) No Data|(1979) No Data|(1987) No Data|Production volumes for non-confidential chemicals reported under the Inventory Update Rule. [Table#5099]|Non-confidential 2016 Chemical Data Reporting (CDR) information on the production and use of chemicals manufactured or imported into the United States. Chemical: potassium bromide:

Grades: Technical, CP (chemically pure), NF (National Formulary), reagent, single crystals.|/Available:/ Photograde, 99% min; Halide 11-Granular and solution grade

All other basic inorganic chemical manufacturing|Potassium bromide (KBr): ACTIVE|DURING PRODUCTION OF BROMIDE SALTS, BROMINE MAY BE RELEASED INTO AIR IF REACTION VESSELS ARE NOT FULLY GAS-TIGHT, & HIGH ATMOSPHERIC CONCN MAY DEVELOP WHEN REACTION VESSELS ARE OPENED FOR CHARGING OR DISCHARGING. /BROMIDE SALTS/

KBR DETERMINED BY AUTOMATIC COULOMETRIC-ARGENTOMETRIC TITRATION, BASED ON METHOD OF JJ LINGANE (1954).|Analyte: potassium bromide; matrix: chemical identification; procedure: visual reaction with sodium bitartrate to form white crystalline precipitate that is soluble in ammonium hydroxide and in solutions of alkali hydroxides and carbonates (Potassium test)|Analyte: potassium bromide; matrix: chemical identification; procedure: visual reaction (yellowish-white precipitate) with silver nitrate (Bromide test)|Analyte: potassium bromide; matrix: chemical purity; procedure: dissolution in water; addition of nitric acid, silver nitrate, and dibutyl phthalate; back titration with ammonium thiocyanate with ferric ammonium sulfate solution as indicator

Animal Drugs -> FDA Approved Animal Drug Products (Green Book) -> Active Ingredients

Computed Properties

Molecular Weight:119.00
Hydrogen Bond Acceptor Count:1
Exact Mass:117.88204
Monoisotopic Mass:117.88204
Heavy Atom Count:2
Complexity:2
Covalently-Bonded Unit Count:2
Compound Is Canonicalized:Yes

Downstream Products

Price Analysis

Make your Potassium bromide purchase based on the price and market insights! ECHEMI provides professional market insights with prices for you to make a better choice. Learn more on Potassium bromide prices .
  • Data: 2026-08-21
  • Price: 22000.00Yuan/ton
  • Change: 0

Drug Function and Efficacy

Has a certain sedative effect

This ingredient has been used in drugs with the following functions (note: it does not mean that the ingredient itself has the following health functions)

Related Drugs

Registered Holders

  • Zigong Honghe Pharmacy Co., Ltd.

    China China
    Active
  • Sichuan Jianneng Pharmaceutical Co., Ltd.

    China China
    Active
  • Taishan City Xinning Pharmaceutical Co., Ltd.

    China China
    Active

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