Eplerenone Digoxin

DIGOXIN POTASSIUM-SPARING DIURETICS AND ALDOSTERONE ANTAGONISTS Eplerenone and spironolactone may T plasma concentrations of digoxin Uncertain spironolactone possibly L the volume of distribution of digoxin Monitor digoxin levels watch for digoxin toxicity... 

Clinically important, potentially hazardous interactions with alfentanil, aminophylline, amisulpride, amoxicillin, ampicillin, anticonvulsants, astemizole, atorvastatin, benzodiazepines, bromocriptine, buprenorphine, bupropion, carbamazepine, cilostazol, ciprofloxacin, cisapride, clindamycin, colchicine, cyclosporine, dasatinib, digoxin, dihydroergotamine, diltiazem, disopyramide, enoxacin, eplerenone, ergotamine, eszopiclone, everolimus, fluconazole, fluoxetine, fluvastatin, gatifloxacin, HMG-CoA reductase inhibitors, imatinib, itraconazole, ketoconazole, lomefloxacin, lorazepam, lovastatin, methadone, methylprednisolone, methysergide, midazolam, mizolastine, moxifloxacin, nitrazepam, norfloxacin, ofloxacin, paroxetine, pimozide, pravastatin, quinolones, ranolazine, repaglinide, rupatadine, sertraline, sildenafil, simvastatin, sparfloxacin, sulpiride, tacrolimus, terfenadine, triazolam, troleandomycin, vardenafil, verapamil, vinblastine, warfarin, zaleplon, zolpidem, zuclopenthixol... 

Clinically important, potentially hazardous interactions with acebutolol, amiodarone, aspirin, atenolol, atorvastatin, betaxolol, carbamazepine, carteolol, celiprolol, donidine, dabigatran, dantrolene, digoxin, dofetilide, epirubicin, eplerenone, erythromycin, esmolol, eucalyptus, everolimus, lovastatin, metoprolol, mistletoe, nadolol, oxprenolol, penbutolol, pindolol, propranolol, quinidine, ranolazine, sibutramine, simvastatin, timolol, trabectedin... 

Caution is recommended when eplerenone is used with alpha blockers, antipsychotics, amifostine, baclofen, corticosteroids, tetracosactide and tricyclic antidepressants. Lithium, ciclosporin, and tacrolimus should generally not be used with eplerenone. Antacids, cisapride, midazolam and simvastatin had no effect on eplerenone pharmacokinetics. Eplerenone had no important effect on cisapride, midazolam, warfarin or contraceptive steroid pharmacokinetics, but caused a slight increase in digoxin levels. 

The steady-state AUC of digoxin 200 micrograms daily increased by 16% when it was given to healthy subjects with eplerenone 100 mg daily. The UK manufacturers warn that caution may be warranted in patients with digoxin levels near the upper end of the therapeutic range. Note that changes of this size are within the usual expected variation in the AUC of digoxin. 

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