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 M 13 logo and 241 APO 033 V500 logo and 15 2.9 1078 7010 CL28 C 284 SD 9 logo and 3 MP 513 PERCOCET HP 44 AC 108 EV0120 DCI SOMA 250 F 146 MYLAN 167 K 26 TCL242 PD 525 PAR 823 HP 27 A538 TL020 IMI 10 TL042 RP 115 KPI 241 H 502 V100 or V150 logo and 804 L2 8118 ED 400 MX 16