التداخل بين أرفورموتيرول وأتينولول وكلورثاليدون

Xanthine derivatives, steroids, diuretics, or non-potassium sparing diuretics may potentiate hypokalemia or ECG changes.

Beta-blockers may decrease effectiveness.

Xanthine Derivatives, Steroids, or Diuretics Concomitant treatment with methylxanthine (aminophylline, theophylline), steroids, or diuretics may potentiate any hypokalemic effect of adrenergic agonists including arformoterol tartrate inhalation solution [see Warnings and Precautions (5.7) ].

Non-potassium Sparing Diuretics The ECG changes and/or hypokalemia that may result from the administration of non-potassium sparing diuretics (such as loop or thiazide diuretics) can be acutely worsened by beta-agonists, especially when the recommended dose of the beta-agonist is exceeded.

Although the clinical significance of these effects is not known, caution is advised in the co-administration of beta-agonists, including arformoterol tartrate inhalation solution, with non-potassium sparing diuretics.

Since beta 1 -selectivity is not absolute, the lowest possible dose of atenolol and chlorthalidone should be used and a beta 2 -stimulating agent (bronchodilator) should be made available.