Pill Identification by Imprints: H 501 Home Pill Identification by Imprints: H 501 4 results HYDROXYZINE HCL 25 MG TABLET Side 1: H 501 Color: White Side 2: Shape: Round HYDROXYZINE HCL 25 MG TABLET Side 1: H 501 Color: White Side 2: Shape: Round HYDROXYZINE HCL 25 MG TABLET Side 1: H 501 Color: White Side 2: Shape: Round HYDROXYZINE HCL 25 MG TABLET Side 1: H 501 Color: White Side 2: Shape: Round Other Popular Drug Imprint 381 141 RT RD05 logo and 530 Lilly 3270 M 52 M377 C C ML 041 SZ Z4 logo and 48 R575 SZ246 P20 M 1 E42 B 566 GC 101 ZC18 PFIZER 398 par 086 SEARLE 1461 132 0397 2 VALIUM M S23 1047 TL 708 L9Y7 SL 100 347 1 8 POLY 716 93 7436 572 Tri P 2 V357 Logo and Z+ or M+ W962