Pill Identification by Imprints: R 100 Home Pill Identification by Imprints: R 100 2 results METOPROLOL TARTRATE 100 MG TAB Side 1: R 100 Color: Pink Side 2: Shape: Round METOPROLOL TARTRATE 100 MG TAB Side 1: R 100 Color: Pink Side 2: Shape: Round Other Popular Drug Imprint 0631 50mg U-S 500 P291 M 617 CG logo and 144 MYLAN 4250 logo 1117 MYLAN 2002 15/30 or P1 M 1 WPI 1000 MYCOBUTIN APO 500 Poly 216 LCI 1354 L554 NF5 L2 or F BMS 1965 585 SX 609 M450 2.5/500 2 9 A 153 ICN M 134 L010 SDF 20 WW 15 L421 627 ZA-18 840 MYLAN 4415 ANAFRANIL 75 mg B853 ML 4