मेटोप्रोलोल और हाइड्रोक्लोरोथायज़ाइड और प्रोपाफेनोन का इंटरैक्शन

In 4 patients, administration of metoprolol with propafenone increased the metoprolol plasma concentrations at steady state by 100% to 400%.

In clinical trials using propafenone immediate-release tablets, patients who were receiving beta-blockers concurrently did not experience an increased incidence of side effects.

The pharmacokinetics of propafenone was not affected by the coadministration of either propranolol or metoprolol.

CYP2D6 inhibitors: Increased metoprolol concentration.

…catecholamine-depleting drugs (e.g., reserpine, monoamine oxidase (MAO) inhibitors) with beta adrenergic blockers may have an additive affect and increase the risk of hypotension or bradycardia CYP2D6 Inhibitors: Drugs that are strong inhibitors of CYP2D6 such as quinidine, fluoxetine, paroxetine, and propafenone were shown to double metoprolol concentrations.