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Penicillin V Potassium Tablets

Function and Efficacy

This product is a penicillin antibiotic. The antibacterial spectrum is the same as penicillin. It has antibacterial activity against most Gram-positive bacteria, Gram-negative cocci, individual Gram-negative bacilli (such as Haemophilus), spirochetes and actinomycetes, but most Staphylococcus strains (90%) including Staphylococcus aureus and coagulase-negative Staphylococci can produce β-lactamase to hydrolyze this product and inactivate it. The activity of this product against most sensitive strains is 2 to 5 times weaker than that of penicillin. It has no antibacterial effect on strains that produce penicillinase. The mechanism of action of this product is to inhibit the synthesis of bacterial cell walls, causing the bacteria to rupture and dissolve rapidly.

Ingredients

The main ingredient of this product is penicillin V potassium, and its chemical name is (2S, 5R, 6R)-3,3-dimethyl-7-oxo-6-(2-phenoxyacetylamino)-4-thia-1-azabicyclo[3.2.0]-heptane-2-carboxylic acid potassium salt.

Name Description Content CAS NO. Manufacturer
Penicillin V potassium saltIngredients

This product is a penicillin antibiotic. The antibacterial spectrum is the same as penicillin. It has antibacterial activity against most Gram-positive bacteria, Gram-negative cocci, individual Gram-negative bacilli (such as Haemophilus), spirochetes and actinomycetes, but most Staphylococcus strains (90%) including Staphylococcus aureus and coagulase-negative Staphylococci can produce β-lactamase to hydrolyze this product and inactivate it. The activity of this product against most sensitive strains is 2 to 5 times weaker than that of penicillin. It has no antibacterial effect on strains that produce penicillinase. The mechanism of action of this product is to inhibit the synthesis of bacterial cell walls, causing the bacteria to rupture and dissolve rapidly.

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132-98-9 18

Appearance

This product is a white tablet or a film-coated tablet or a sugar-coated tablet, which appears white after removing the coating.

Indication

This product is suitable for mild and moderate infections caused by penicillin-sensitive strains, including tonsillitis, pharyngitis, scarlet fever, erysipelas, etc. caused by streptococci; bronchitis, pneumonia, otitis media, sinusitis caused by pneumococci, and skin and soft tissue infections caused by sensitive staphylococci, etc. This product can also be used for spirochetal infections and as a preventive drug for recurrent rheumatic fever and infective endocarditis.

Usage and Dosage

Oral. Streptococcal infection in adults: 125-250 mg once, once every 6-8 hours, for a course of 10 days. Pneumococcal infection: 250-500 mg once, once every 6 hours, for a course of at least 2 days after the fever subsides. Staphylococcal infection, spirochete infection (Fensen angina): 250-500 mg once, once every 6-8 hours. Prevention of recurrence of rheumatic fever: 250 mg once, twice a day. Prevention of endocarditis: Take 2 g of this product orally 1 hour before tooth extraction or upper respiratory tract surgery, and then take 1 g after 6 hours (the dose for children under 27 kg is halved). For children, take 2.5-9.3 mg/kg once, every 6 hours according to body weight.

Adverse Reactions

1 Common gastrointestinal reactions such as nausea, vomiting, upper abdominal discomfort, diarrhea and black hairy tongue. 2 Allergic reactions: rash (especially prone to occur in patients with infectious mononucleosis), urticaria and other serum sickness-like reactions, laryngeal edema, drug fever and eosinophilia. 3 Double infection: Long-term or large-scale use of this product can cause penicillin-resistant Staphylococcus aureus, Gram-negative bacilli or Candida albicans infection (brown or even black tongue coating). 4 Rare hemolytic anemia, transient increase in serum aminotransferase, leukopenia, thrombocytopenia, neurotoxicity and nephrotoxicity.

Precautions

It is contraindicated for patients with positive penicillin skin test reaction, those who are allergic to this product and other penicillins, and those with infectious mononucleosis.

Special Population Medication

Precautions for children: This product has not been tested and there is no reliable reference. Precautions for pregnancy and lactation: 1. This product can enter the fetus through the placenta, so pregnant women should use it with caution. 2. This product can be secreted into breast milk, which may cause sensitization to infants and cause diarrhea, rash, candida infection, etc., so lactating women should use it with caution or stop breastfeeding during medication. Precautions for the elderly: Elderly patients should adjust the dosage or medication interval according to their renal function.

Drug Interactions

1. Probenecid, aspirin, indomethacin, phenylbutazone, and sulfonamides can reduce the excretion of this product in the renal tubules, thereby increasing the blood concentration of this product, prolonging the blood elimination half-life (t1/2β), and the toxicity may also increase. 2. When this product is used in combination with allopurinol, the incidence of rash increases significantly, so the combination should be avoided. 3. This product should not be used in combination with acetaldehyde dehydrogenase inhibitors such as disulfiram. 4. When this product is used in combination with chloramphenicol for bacterial meningitis, the incidence of long-term sequelae is higher than when either is used alone. 5. This product can stimulate estrogen metabolism or reduce its enterohepatic circulation, thereby reducing the effectiveness of oral contraceptives. 6. Chloramphenicol

Storage

Keep away from light, seal tightly and store in a cool dark place.

Packaging Specification

0.236 g (400,000 units)

Validity Period

24 months

Manufacturer

Jilin Jinnuo Pharmaceutical Co., Ltd.

  • Founded in:

    2010-05-14
  • Address:

    No. 999-B, Xingfu East Road, Zhenlai Economic Development Zone, Jilin Province
  • Tax NO.:

    912208215552624425
  • Registered Funds:

    5 million yuan
  • Email:

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