Pill Identification by Imprints: K 4 Home Pill Identification by Imprints: K 4 1 result PROMETHAZINE 50 MG TABLET Side 1: K 4 Color: Pink Side 2: Shape: Round Other Popular Drug Imprint V10 T 277 #L 001 HP 228 ALAVEN WPI 839 ZA21 V 5 511 U16 cor 136 L409 W 921 logo and 10 CL 32 1311 Tylenol 500 I 136 54 293 R 158 or 54 312 or GG849 E 124 A CD K 40 ZD 16 OP 706 TENORMIN 3S0 RH37 GG 505 74 ZE 54 741 PAL 1.5 E150 NL 771 SZ 657 L203 Nitro-Dur 0.4 mg/hr A IK E 123 54 948