التداخل بين أميتريبتيلين ودوفيتيليد

Use with Drugs that Prolong QT Interval and Antiarrhythmic Agents The use of dofetilide in conjunction with other drugs that prolong the QT interval has not been studied and is not recommended.

Such drugs include phenothiazines, cisapride, bepridil, tricyclic antidepressants, certain oral macrolides, and certain fluoroquinolones.

…hydrochlorothiazide (alone or in combinations such as with triamterene) (see CONTRAINDICATIONS ), other cardiovascular drugs (especially verapamil – see CONTRAINDICATIONS ), phenothiazines, and tricyclic antidepressants (see WARNINGS ).If a patient is taking dofetilide and requires anti-ulcer therapy, omeprazole, ranitidine, or antacids (aluminum and magnesium hydroxides)…

The drugs that inhibit cytochrome P450 2D6 include some that are not metabolized by the enzyme (quinidine; cimetidine) and many that are substrates for P450 2D6 (many other antidepressants, phenothiazines, and the Type 1C antiarrhythmics propafenone and flecainide).