Active Ingredient(s): Carbenicillin
FDA Approved: * October 26, 1972
Pharm Company: * PFIZER
Category: Antibiotics

Carbenicillin is a bactericidal antibiotic belonging to the carboxypenicillin subgroup of the penicillins. It was discovered by scientists at Beecham and marketed as Pyopen. It has Gram-negative coverage which includes Pseudomonas aeruginosa but limited Gram-positive coverage. The carboxypenicillins are susceptible to degradation by beta-lactamase enzymes, although they are more resistant than ampicillin to degradation. Carbenicillin is also more stable at lower pH than ampicillin. Contents... [wikipedia]

* May have multiple approval dates, manufacturers, or labelers.

Dosage List

Geocillin 382 mg Oral Tablet
NDC: 0049-1430