title: Procaine penicillin and sulfonamide antagonism.
authors.forename: H
authors.initials: H
authors.lastname: FISCHBACH
authors.forename: H
authors.initials: H
authors.lastname: WELCH
mesh_terms: D010402:Penicillin G Procaine; D010406:Penicillins; D011343:Procaine / Q000031:analogs & derivatives; D000077145:Sulfanilamide; D013424:Sulfanilamides; D013449:Sulfonamides
chemical_list: D010406:Penicillins; D013424:Sulfanilamides; D013449:Sulfonamides; D010402:Penicillin G Procaine; D000077145:Sulfanilamide; D011343:Procaine