Synonyms: 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylicacid, 3,3-dimethyl-7-oxo-6-(2-phenoxyacetamido)- (8CI);4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid,3,3-dimethyl-7-oxo-6-[(phenoxyacetyl)amino]-, (2S,5R,6R)- (9CI);4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 3,3-dimethyl-7-oxo-6-[(phenoxyacetyl)amino]-,[2S-(2a,5a,6b)]-;6-(Phenoxyacetamido)penicillanic acid; Acipen-V; Calcipen; Crystapen V;Distaquaine V; Eskacillin V; Fenacilin; Meropenin; Oracillin; Oracilline;Oratren; Orocillin; Ospen; Pen-Oral; Pen-Vee; Pen-vee-oral; Penicillin V;Penicillin, phenoxymethyl-; Phenocillin; Phenopenicillin; Phenospen;Phenoxymethylpenicillin; Phenoxymethylpenicillinic acid; Stabicillin; V-Cil;V-Cillin; V-Cylina; V-Cyline; V-Tablopen; Vebecillin