p-aminobenzoic acid[ă-mē′nō-ben-zō′ik as′id]


1. 4-aminobenzoic acid, a factor in the vitamin B complex, required for biosynthesis of folate; neutralizes the bacteriostatic effects of the sulfonamides because it furnishes an essential growth factor for bacteria; elevated concentrations of the sulfonamides interfere with use of this agent and of folates; used as an ultraviolet screen in lotions and creams. It is produced in a test of pancreatic function.

paraaminobenzoic acid , vitamin Bx

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