Pill Identification by Imprints: C4 Home Pill Identification by Imprints: C4 4 results AMLODIPINE-OLMESARTAN 10-40 MG Side 1: C4 Color: Brown Side 2: Shape: Round AMLODIPINE-OLMESARTAN 10-40 MG Side 1: C4 Color: Brown Side 2: Shape: Round CELECOXIB 50 MG CAPSULE Side 1: C4 Color: White Side 2: 50mg Shape: Oblong VALSARTAN 160 MG TABLET Side 1: C4 Color: Yellow Side 2: C Shape: Oval Other Popular Drug Imprint NOVO 291 RI 5 TN 1 LUPIN LUPIN RIS 104 187 14/10 E 101 logo and 117 MX 23 25mg OR P-2 AA 825 311 AV 1272 702 DS or DP E 34 WW 172 D3 or P CN 1 E 38 ED DM n 573 AZ 267 93 318 44-526 1159 K 2 A D G WATSON 782 1313 M T11 44 159 HP 4 MP 577 54 44 392 M B4 1071 5/1000