Pill Identification by Imprints: K4 Home Pill Identification by Imprints: K4 1 result PROMETHAZINE 50 MG TABLET Side 1: K4 Color: Pink Side 2: Shape: Round Other Popular Drug Imprint logo and Cephalon P-113 M 76 EP 50 M L53 627 M3 or P or M4 ALV 317 336 L16 GS NX3 2773 B134 R-265 M 547 M T1 FL 21/10 CLARITIN D L282 2101 STO 200 PAC20 U S 122 112 cor 150 V356 10 00 54 328 MX 15 93 7385 U85 A538 KU 181 LCI 1337 P2 TL015 GS LFG WATSON 384 or WATSON MMD