Pill Identification by Imprints: HP 4 Home Pill Identification by Imprints: HP 4 3 results HYDRALAZINE 100 MG TABLET Side 1: HP 4 Color: Pink Side 2: Shape: Round HYDRALAZINE 100 MG TABLET Side 1: HP 4 Color: Pink Side 2: Shape: Round HYDRALAZINE 100 MG TABLET Side 1: HP 4 Color: Pink Side 2: Shape: Round Other Popular Drug Imprint R136 AN 675 M L54 MYLAN TE 2 54 242 A223 BP 815 allegra-D MYLAN DE 30 L478 D20 logo and 2907 WATSON 800 FL 1.5 or FL 3 logo and 2778 M D54 AN 617 L 67 TCL 355 E 204 516 241 1 TEMODAR n 357 M 7 268 ZA-36 P A94 B082 L142 308 CTI 113 C 735 par 259 FP ALG 265 L 299 logo and 0304 d p