Increased levels/effects of α
1-blockers, α
2-agonists, amifostine, antipsychotic agents (eg, phenothiazines), 2nd generation antipsychotics (atypical), bradycardia-causing agents, bromperidol, bupivacaine, cardiac glycosides, ceritinib, cholinergic agonists, disopyramide, duloxetine, ergot derivatives, fexinidazole, fingolimod, grass pollen allergen extr (5 grass extr), hypotension-associated agents, insulins, ivabradine, lacosamide, levodopa-containing products, systemic/topical lidocaine, mepivacaine, methacholine, nitroprusside, pholcodine, siponimod, sulfonylureas. Increased levels/effects w/ acetylcholinesterase inhibitors, alfuzosin, α
2-agonists, aminoquinolines (antimalarial), amiodarone, antipsychotics (eg, phenothiazines), barbiturates, benperidol, brigatinib, topical brimonidine, nondihydropyridine Ca channel blockers, diazoxide, dipyridamole, disopyramide, dronedarone, floctafenine, herbs (hypotensive properties), lormetazepam, methoxyflurane, midodrine, molsidomine, naftopidil, nicergoline, nicorandil, nifedipine, obinutuzumab, opioids (eg, anilidopiperidine), pentoxifylline, phosphodiesterase 5 inhibitors, propafenone, prostacyclin analogues, quinagolide, regorafenib, reserpine, rivastigmine, ruxolitinib, terlipressin, tofacitinib. Decreased levels/effects of β
2-agonists, nasal/oral/inhalation/racemic/systemic epinephrine, theophylline derivatives. Decreased levels/effects w/ amphetamines, barbiturates, bosentan, brigatinib, bromperidol, moderate/strong CYP3A4 inducers, dabrafenib, deferasirox, dexmethylphenidate, enzalutamide, erdafitinib, herbs (hypertensive properties), ivosidenib, lorlatinib, methylphenidate, mitotane, NSAIDs, rifamycin derivatives, sarilumab, siltuximab, tocilizumab, yohimbine.