Dapagliflozin and metformin and Losartan and hydrochlorothiazide interaction
Dapagliflozin and metformin and Losartan and hydrochlorothiazide: both prescribing labels describe an interaction that usually calls for monitoring, a dose change, or spacing the doses.
Usually manageable with monitoring or a dose change. Tell your pharmacist you take both.
What the FDA labels say
From the Losartan and hydrochlorothiazide (HYZAAR) label · effective 2025-11-26
Antidiabetic drugs: dosage adjustment of antidiabetic may be required.
The Use of Hydrochlorothiazide with Other Drugs When administered concurrently, the following drugs may interact with thiazide diuretics [see Clinical Pharmacology (12.3) ]: Antidiabetic drugs (oral agents and insulin) — dosage adjustment of the antidiabetic drug may be required.
From the Dapagliflozin and metformin (XIGDUO XR) label · effective 2026-08-11
Patients with impaired renal function (eGFR less than 60 mL/min/1.73 m 2 ), elderly patients, or patients on loop diuretics may be at increased risk for volume depletion or hypotension.
• Volume Depletion: Before initiating XIGDUO XR, assess and correct volume status in the elderly, patients with renal impairment or low systolic blood pressure, and in patients on diuretics.
These medications include thiazides and other diuretics, corticosteroids, phenothiazines, thyroid products, estrogens, oral contraceptives, phenytoin, nicotinic acid, sympathomimetics, calcium channel blocking drugs, and isoniazid.
Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.
Open in the checkerNot medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.