The most widely used form and the first of the penicillins developed for medicinal use. It is used in the form of the benzathine, potassium, procaine, and sodium salts, principally in the treatment of infections due to penicillin-susceptible gram-positive bacteria, gram-negative cocci, Treponema pallidum, and Actinomyces israelii. Called also benzylpenicillin.
an aqueous suspension of a relatively insoluble salt of penicillin G that provides a low antibacterial but persistent serum level of penicillin G following intramuscular injection – called also benzathine penicillin.
See also: * Infections Associated with Lymphedema