DICYCLOMINE HYDROCHLORIDE- dicyclomine hydrochloride_tablet
Function and Efficacy
Dicyclomine relieves smooth muscle spasm of the gastrointestinal tract. Animal studies indicate that this action is achieved via a dual mechanism: in vitro In vivo 2 2 Dicyclomine hydrochloride can inhibit the secretion of saliva and sweat, decrease gastrointestinal secretions and motility, cause drowsiness, dilate the pupils, increase heart rate, and depress motor function. Absorption and Distribution Elimination.
Indication
Dicyclomine hydrochloride tablets are indicated for the treatment of patients with functional bowel/irritable bowel syndrome. Dicyclomine hydrochloride tablets are an antispasmodic and anticholinergic (antimuscarinic) agent indicated for the treatment of functional bowel/irritable bowel syndrome ( 1.
Usage and Dosage
Dosage must be adjusted to individual patient needs. Dosage for dicyclomine hydrochloride tablets must be adjusted to individual patient needs ( 2 2 Oral in adults ( 2. 1 The recommended initial dose is 20 mg four times a day.
Label
Adverse Reactions
The pattern of adverse effects seen with dicylomine is mostly related to its pharmacological actions at muscarinic receptors [see Clinical Pharmacology ( 12 [see Warnings and Precautions ( 5. 3 The most serious adverse reactions include cardiovascular and central nervous system symptoms. The most common adverse reactions (> 5% of patients) are dizziness, dry mouth, vision blurred, nausea, somnolence, asthenia and nervousness ( 6 To report SUSPECTED ADVERSE REACTIONS, contact Annora Pharma Limited at 1-866-495-1995 or FDA at 1-800-FDA-1088 or www. gov/medwatch. Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. 0 Table 1: Adverse reactions experienced in controlled clinical trials with decreasing order of frequency MedDRA Preferred Term Dicyclomine Hydrochloride (40 mg four times a day) % Placebo % Dry Mouth 33 5 Dizziness 40 5 Vision blurred 27 2 Nausea 14 6 Somnolence 9 1 Asthenia 7 1 Nervousness 6 2 Nine percent (9%) of patients were discontinued from dicyclomine hydrochloride because of one or more of these side effects (compared with 2% in the placebo group). In 41% of the patients with side effects, side effects disappeared or were tolerated at the 160 mg daily dose without reduction. A dose reduction from 160 mg daily to an average daily dose of 90 mg was required in 46% of the patients with side effects who then continued to experience a favorable clinical response; their side effects either disappeared or were tolerated. The following adverse reactions, presented by system organ class in alphabetical order, have been identified during post approval use of dicyclomine hydrochloride. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Cardiac disorders: Eye disorders: Gastrointestinal disorders: General disorders and administration site conditions: Immune System Disorders: Nervous system disorders: Psychiatric disorders: Reproductive system and breast disorders: Respiratory, thoracic and mediastinal disorders: Skin and subcutaneous tissue disorder Gastrointestinal: anorexia.
Precautions
Dicyclomine hydrochloride is contraindicated in infants less than 6 months of age [see Use in Specific Populations ( 8. 4 [see Use in Specific Populations ( 8. 3 unstable cardiovascular status in acute hemorrhage [see Warnings and Precautions ( 5. 4 [see Adverse Reactions ( 6. 1 [see Warnings and Precautions ( 5. 8 [see Warnings and Precautions ( 5. 5 [see Warnings and Precautions ( 5. 7 Infants less than 6 months of age ( 4 4 4 4 4 4 4 4 4.
Special Population Medication
Pregnancy: use only if clearly needed ( 8. 6 Pregnancy Category B Dicyclomine hydrochloride is contraindicated in women who are breastfeeding. Dicyclomine hydrochloride is excreted in human milk. Because of the potential for serious adverse reactions in breast-fed infants from dicyclomine hydrochloride, a decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother [see Use in Specific Populations ( 8. 4 Safety and effectiveness in pediatric patients have not been established. [see Contraindications ( 4 Clinical studies of dicyclomine hydrochloride did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Other reported clinical experience has not identified differences in responses between the elderly and younger patients. In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range in adults, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy. Effects of renal impairment on PK, safety and efficacy of dicyclomine hydrochloride have not been studied. Dicyclomine hydrochloride drug is known to be substantially excreted by the kidney, and the risk of toxic reactions to this drug may be greater in patients with impaired renal function. Dicyclomine hydrochloride should be administered with caution in patients with renal impairment. Dicyclomine hydrochloride should be administered with caution in patients with hepatic impairment.
Drug Interactions
Antiglaucoma agents: 7 Anticholinergic agents: 7 Antacids 7 Anticholinergics antagonize the effects of antiglaucoma agents. Anticholinergic drugs in the presence of increased intraocular pressure may be hazardous when taken concurrently with agents such as corticosteroids. Use of dicyclomine hydrochloride in patients with glaucoma is not recommended [see Contraindications ( 4 The following agents may increase certain actions or side effects of anticholinergic drugs including dicyclomine hydrochloride: amantadine, antiarrhythmic agents of Class I (e. , quinidine), antihistamines, antipsychotic agents (e. , phenothiazines), benzodiazepines, MAO inhibitors, narcotic analgesics (e. , meperidine), nitrates and nitrites, sympathomimetic agents, tricyclic antidepressants, and other drugs having anticholinergic activity. Interaction with other gastrointestinal motility drugs may antagonize the effects of drugs that alter gastrointestinal motility, such as metoclopramide. Because antacids may interfere with the absorption of anticholinergic agents including dicyclomine hydrochloride, simultaneous use of these drugs should be avoided. Anticholinergic agents may affect gastrointestinal absorption of various drugs by affecting on gastrointestinal motility, such as slowly dissolving dosage forms of digoxin; increased serum digoxin concentration may result. The inhibiting effects of anticholinergic drugs on gastric hydrochloric acid secretion are antagonized by agents used to treat achlorhydria and those used to test gastric secretion.
Other Information
OVERDOSAGE
In case of an overdose, patients should contact a physician, poison control center (1-800-222-1222), or emergency room. 50 [see Warnings and Precautions (5.1)] the blood concentrations of drug were 200, 220, and 505 ng/mL.
NONCLINICAL TOXICOLOGY
Long-term animal studies have not been conducted to evaluate the carcinogenic potential of dicyclomine. In studies in rats at doses of up to 100 mg/kg/day, dicyclomine produced no deleterious effects on breeding, conception, or parturition.
CLINICAL STUDIES
In controlled clinical trials involving over 100 patients who received drug, 82% of patients treated for functional bowel/irritable bowel syndrome with dicyclomine hydrochloride at initial doses of 160 mg daily (40 mg four times daily) demonstrated a favorable clinical response compared with 55% treated with placebo (p<0.05).
Manufacturer
NuCare Pharmaceuticals, Inc.