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 MYLAN 1610 LU LU MYLAN 335 TYLENOL 500 HOSPITAL 54 737 WATSON 607 GLYNASE 6 A 45 657 V 4172 EV0070 93 3196 A536 L478 10 300 logo and 1000-20 K11 47 10/325 m 156 A P FAMVIR RP133 SZ 201 226 or 291 T1 200 Z 3925 922 CL 022 674 MYLAN 334 OMJ 250 CARAFATE MYLAN 2150 402 L16 1052 INCY CL11 L734