Synonyms: 1-Naphthaleneheptanoicacid, 8-(2,2-dimethyl-1-oxobutoxy)-1,2,6,7,8,8a-hexahydro-b,d-dihydroxy-2,6-dimethyl-, monoammonium salt, (bR,dR,1S,2S,6R,8S,8aR)- (9CI);1-Naphthaleneheptanoicacid, 8-(2,2-dimethyl-1-oxobutoxy)-1,2,6,7,8,8a-hexahydro-b,d-dihydroxy-2,6-dimethyl-, monoammonium salt, [1S-[1a(bS*,dS*),2a,6b,8b,8aa]]-;Ammonium simvastatin;Simvastatin acid ammonium salt;Simvastatincarboxylic acid ammonium salt;