O-Desmethyl metoprolol, a metabolite of metoprolol, acts as a β1-adrenergic receptor (β1-AR) antagonist. This compound is produced through the metabolism of metoprolol by the cytochrome P450 (CYP) isoform CYP2D6.
Metoprolol is a selective β1 receptor blocker medication. It is used to treat high blood pressure, chest pain due to poor blood flow to the heart, and a number of conditions involving an abnormally fast heart rate. It is also used to prevent further heart problems after myocardial infarction and to prevent headaches in those with migraines.
α-hydroxy Metoprolol is an active metabolite of the β1-adrenergic receptor blocker metoprolol. It is formed via metabolism of metoprolol by the cytochrome P450 (CYP) isoform CYP2D6.