Pill Identification by Imprints: RX904 Home Pill Identification by Imprints: RX904 2 results VALACYCLOVIR HCL 500 MG TABLET Side 1: RX904 Color: Blue Side 2: Shape: Oblong VALACYCLOVIR HCL 500 MG TABLET Side 1: RX904 Color: Blue Side 2: Shape: Oblong Other Popular Drug Imprint RI1 CLOM 50 cor 132 I 50 10LA SZ 431 E 648 A 117 T539 MP 71 NL 570 ML 95 T4 BMS 125 mg CL 75 C81 WW 110 logo and 78 240 WATSON 444 logo and 5306 809 G 0522 2175 A 2 1 52 S 180 N 50 U01 AR 50 M D54 ML 33 G&W 0555 V222 TL 385 L 178 S 90 3 T30 G443 MP 577 L100