Pill Identification by Imprints: TR 50 Home Pill Identification by Imprints: TR 50 2 results TRAMADOL HCL 50 MG TABLET Side 1: APO Color: White Side 2: TR 50 Shape: Oblong TRAMADOL HCL 50 MG TABLET Side 1: APO Color: White Side 2: TR 50 Shape: Oblong Other Popular Drug Imprint M 615 M R ALKA SELTZER EX S K 45 241 P-2 logo and 0.5 VP 25 DIDREX 50 4 M378 E 50 WPI 500 GG 531 5553 PFIZER 399 K 31 9Q3 W 716 T 22 LILLY 4165 RX695 10 MIA CYP 190 93 900 50 107 C280 135 GXL 10 P 075 C 2 1/2 WPI 845 A10 93 42 798 UL 125 ASC 116 WPI 3699 F or FL