[2] Specifically it is used for syphilis, anthrax, mouth infections, pneumonia, diphtheria, cellulitis, and animal bites.

[1][2] Procaine benzylpenicillin is in the penicillin and beta lactam family of medications.

[citation needed] It is a form of penicillin which is a salt of benzylpenicillin and the local anaesthetic agent procaine.

Procaine acts as a local anaesthetic to reduce the discomfort of the depot, while benzylpenicillin enters into circulation and binds to bacterial cell walls, inhibiting their upkeep and production.

The term "hydrolyzed" is incorrectly used in some medical literature to describe the dissociation of the salt and resulting benzylpenicillin, but this is inaccurate - the molecules themselves are unchanged and no water is consumed in the reaction.