Pill Identification by Imprints: A21 Home Pill Identification by Imprints: A21 2 results AMLODIPINE-OLMESARTAN 10-40 MG Side 1: A21 Color: Brownish-Red Side 2: Shape: Round AMLODIPINE-OLMESARTAN 10-40 MG Side 1: A21 Color: Brownish-Red Side 2: Shape: Round Other Popular Drug Imprint AR 374 VASOTEC 1328 L546 555 606 N 943 KU logo and A4 MUTUAL 401 PA2 PROCARDIA XL 90 024 A9 or A8 or A7 or A2 978 1072 10/500 Y 42 8310 35 35 981 44 194 M523 Z12 LOGO LANNETT West-ward 473 L 2 ML 72 ED 200 U 11 ZC 79 b 97 AN 777 44 386 54 552 N L MP 88 M PD1 NL 276 BMS 200mg logo and LD ML 53