Pill Identification by Imprints: RX 504 Home Pill Identification by Imprints: RX 504 0 results Nothing Found!!! Other Popular Drug Imprint ESL600 R4 F MYLAN 5750 H 3 ZESTRIL 2 1/2 10 300 TZ 1 logo and 0303 Z or M RG 11 SPI S433 TIGAN LCI 1445 GG 256 RDY 665 logo and LANNETT D CB7 MP 542 SG 319 BI 7 75 50 ML 4 HP 43 logo and 7772 W 784 YH 018 Tofranil-PM 75 mg 5 7 656 MUTUAL 105 M P9 PREMARIN 0.625 UCB 579 M110 E 0932 20mg 8N