Metoprolol is available in several forms with the following active ingredients: Immediate-release oral (taken by mouth) tablet: Metoprolol tartrate Extended-release oral tablet: Metoprolol ...

Metoprolol succinate 25mg, 50mg, 100mg, 200mg; scored ext-rel tabs. Toprol-XL Tablets are supplied in 100- and 1000-count bottles in the following strengths: 25 mg: white, biconvex, film-coated ...

May be potentiated by cimetidine, lithium, potent inhibitors of CYP2C19 or CYP3A4 (eg, azole antifungals). May be antagonized by carbamazepine. Increases metoprolol levels.