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 MIDOL PM L75 L255 RE 23 T 19 G 3742 PA1000 logo and NR 134 InterMune and logo 267mg Vivelle-Dot 0.025 mg/day 0.25 1159 1346 EA L521 322 RIC M 725 N 204 C57 V250 G 32 A176 K 100 logo and 97 A1 GG N7 712 M 36 N 2 FPI 0.45/20 207 CBP 200 Y L 2 I40 ZOVIRAX 800 57 55