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 590 80 U 129 A222 300 mg FLECTOR PATCH RESTORIL 30 mg RESTORIL 30 mg INDERAL LA 120 L181 44-411 1222 2369 A/P 25 / 30 W W EP 135 CFZ H 147 MYLAN 6897 WPC 001 GG 451 L 22 VASO 10 K 55 L3 or F PREMARIN 0.3 M B4 M MC2 705 7/5 CP 401 ZIKS 633 C74 RP 700 G 022 Librax ANI 232 3 1 IP 194 54 233 L3T3