Pill Identification by Imprints: XR500 Home Pill Identification by Imprints: XR500 4 results METFORMIN HCL ER 500 MG TABLET Side 1: APO Color: White Side 2: XR500 Shape: Oblong METFORMIN HCL ER 500 MG TABLET Side 1: APO Color: White Side 2: XR500 Shape: Oblong METFORMIN HCL ER 500 MG TABLET Side 1: APO Color: White Side 2: XR500 Shape: Oblong METFORMIN HCL ER 500 MG TABLET Side 1: APO Color: White Side 2: XR500 Shape: Oblong Other Popular Drug Imprint GG 225 H9050 1112 M 4 N021 AN 512 PAR 823 Fentanyl 12 mcg/hr 341 1182 H 501 CZ 25 AA 73 U17 WPI 3630 MYLAN 6120 M CL3 L191 TI 100 e5 110 2 MD 562 MYLAN DA 5 logo and 640 W28 M RN1 GG 929 L022 93 61 503 37 T009 C020 WATSON 444 logo 751 scu1 R718 1311 GG 517 44 347