Pill Identification by Imprints: G 421 Home Pill Identification by Imprints: G 421 3 results MIDODRINE HCL 2.5 MG TABLET Side 1: G 421 Color: White Side 2: Shape: Round MIDODRINE HCL 2.5 MG TABLET Side 1: G 421 Color: White Side 2: Shape: Round MIDODRINE HCL 2.5 MG TABLET Side 1: G 421 Color: White Side 2: Shape: Round Other Popular Drug Imprint ACCOLATE 20 UHE E 771 37 98 722 ZVR 100 NL 712 V40 SL 456 AV1 logo and 6451 MYLAN 457 G 90 P 10 NE 200 3S0 A222 M 753 PFIZER 397 TI 100 022 66 or 67 TI 200 G73 466 logo and 2838 370 T 175 Lilly 3228 B384 FLZ 150 TI 93 129 A-293 Buprenorphine Transdermal System R 5 116 398 KU 106 KC 10