Avoid concomitant use w/ bromperidol, sacubitril. Increased effect/toxicity of allopurinol, amifostine, angiotensin II, 2nd gen antipsychotics, azathioprine, bromperidol, systemic ciprofloxacin, drospirenone, duloxetine, ferric gluconate, ferric hydroxide polymaltose complex, succinylated gelatin, gold Na thiomalate, grass pollen allergen extr, hypotension-associated agents, Fe dextran complex, levodopa, lithium, nitroprusside, NSAIDs, pholcodine, pregabalin, sacubitril, Na phosphate. Increased effect w/ alfuzosin, aliskiren, ARB, barbiturates, benperidol, brigatinib, topical brimonidine, canagliflozin, dapoxetine, diazoxide, dipeptidyl peptidase-IV inhibitors, eplerenone, everolimus, heparin, LMWH, herbs w/ hypotensive properties, loop diuretics, lormetazepam, molsidomine, naftopidil, nicergoline, nicorandil, obinutuzumab, pentoxifylline, phosphodiesterase-5 inhibitors, K salts, K-sparing diuretics, prostacyclin analogues, quinagolide, salicylates, sirolimus, temsirolimus, thiazide & thiazide-like diuretics, tizanidine, tolvaptan, trimethoprim. Decreased effect w/ amphetamines, aprotinin, brigatinib, bromperidol, herbs w/ hypotensive properties, icatibant, lanthanum, methylphenidate, NSAIDs, salicylates, yohimbine.