Amlodipine-hydrochlorothiazide-valsartan + Gentamicin

MediHelp rates the interaction as major. Amlodipine-hydrochlorothiazide-valsartan and Gentamicin can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Gentamicin can cause renal tubular damage with magnesium and potassium wasting, and hydrochlorothiazide adds to potassium and magnesium loss. Diuretic-induced volume depletion also raises the risk of aminoglycoside nephrotoxicity and ototoxicity, while valsartan can worsen renal function in volume depletion.

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor serum creatinine, potassium and magnesium, and gentamicin levels during treatment. Consider holding the diuretic and valsartan during acute illness or volume depletion.

MediHelp also lists interactions of Amlodipine-hydrochlorothiazide-valsartan with, for example, Aliskiren, Dofetilide, Sparsentan. The full list is on the Amlodipine-hydrochlorothiazide-valsartan page.