The active substance metoprolol is employed either as metoprolol succinate or as metoprolol tartrate (where 100 mg metoprolol tartrate corresponds to 95 mg metoprolol succinate).
Substrat aktif metoprolol yang digunakan antara metoprolol suksinat atau metoprolol tartrat (di mana 100 mg metoprolol tartrat sebanding 95 mg metoprolol suksinat).