title: Reduction in incidence of rash using polymer-free ampicillin.
mesh_terms: D000368:Aged; D000667:Ampicillin / Q000009:adverse effects*; D004340:Drug Contamination; D003875:Drug Eruptions / Q000209:etiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012882:Skin Tests
chemical_list: D000667:Ampicillin