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 K 77 U Z320 20 mg RX 774 UL 125 C 74 1G5 720 1/2 EFF ZL 1 G264 51H 51H logo and 2778 logo KC logo SANDOZ 667 logo and 2838 NT 200 ALV 196 SG 324 I 4 RP RCC 559 BP 706 835 BTG M 71 APP 332 Z3 or P G 372 2 PN LL713 ROBAXIN 750 M BU1 E21 54 323 TEMOZOLOMIDE 10 31 TL600 U41 658