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 MJ 756 RIC or FV RX694 M 745 54 551 b 776 L553 2175 U42 MP 83 DYRENIUM 100mg N006 b 95 L58 G 172 677 logo and 1830 N 100 1.4 A22 PLIVA 482 827 W 922 54 716 X 10 I 16 MAXZIDE BNVA GG 141 ADOXA P2 A029 54 741 P P HP532 logo and 2909 54 356 A-008 10 MG1 logo and HF