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 MLX 123 IP 193 PA 918 221 IP 303 K75 171 Tofranil-PM 100 mg Triax M0100 LANOXIN X3A PAC20 N A IP 271 54 242 KADIAN A973 EXELON PATCH 4.6mg/24 hours AMCX 54 070 ap 107 E 263 AR 50 M C 93 832 TAP 240 KC M20 497 SZ 788 L149 M 713 IP 10 I G DANTRIUM 100mg M 36 M 70 E 1217 L61 S B 566 TA3M