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 TR TL049 RX 554 292 or 293 M 86 9 4 10 00 93 27 32 C 2 TH1M BUTISOL SODIUM E72 S 5 AC356 EM2 allegra-D 755 L962 P3 I 12 44 148 MLX 123 CAP DM XP PFD E652 329 CB7 I-2 A117 1020 GLUCOTROL XL 5 US 13 0631 50mg INDERAL LA 120 KEY 74 P 10 HYD 80 C010