Side effects, drug interactions, and other prescribing information.

Use, administration, and other prescribing information for this antibiotic designed for deep intramuscular injection.

Information on dosage, usage, side effects, interactions, and drug comparisons, including generics when available.

Information from the RxList.

Dosing, administration, and other prescribing information for buffered Pfizerpen for injection, an antibacterial agent used such pathogens as syphilis and anthrax.

Clinical information including: Pharmacology, indications, adverse reactions, and cautions.