Darunavir y dronedarona: interacción contraindicada

«4 CONTRAINDICATIONS Co-administration of darunavir/ritonavir is contraindicated with drugs that are highly dependent on CYP3A for clearance and for which elevated plasma concentrations are associated with serious and/or life-threatening events (narrow therapeutic index). Examples of these drugs and other contraindicated drugs (which may lead to reduced efficacy of darunavir) are listed below [see Drug Interactions (7.3 )] . Due to the need for co-administration of darunavir with ritonavir, please refer to ritonavir prescribing information for a description of ritonavir contraindications. • Alpha 1-adrenoreceptor antagonist: alfuzosin • Anti-gout: colchicine, in patients with renal and/or hepatic impairment • Antimycobacterial: rifampin • Antipsychotics: lurasidone, pimozide • Cardiac Disorders: dronedarone, ivabradine, ranolazine • Ergot derivatives, e.g. dihydroergotamine, ergotamine, methylergonovine • Herbal product: St. John's wort (Hypericum perforatum) • Hepatitis C direct acting antiviral: elbasvir/grazoprevir • Lipid modifying agents: lomitapide, lovastatin, simvastatin • Opioid Antagonist: naloxegol • PDE-5 inhibitor: sildenafil when used for treatment of pulmonary arterial hypertension • Sedatives/hypnotics: orally administered midazolam, triazolam Co-administration of darunavir/ritonavir is contraindicated with drugs that are highly dependent on CYP3A for clearance and for which elevated plasma concentrations are associated with serious and/or life-threatening events (narrow therapeutic index). ( 4 )»

«Therapeutic concentration monitoring, if available, is recommended for antiarrhythmics when co-administered with darunavir/ritonavir. The lowest dose of digoxin should initially be prescribed.»