Fosinopril and hydrochlorothiazide and Tolmetin interaction
Fosinopril and hydrochlorothiazide and Tolmetin: 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 Tolmetin (Tolectin) label · effective 2025-12-30
Use of tolmetin may blunt the CV effects of several therapeutic agents used to treat these medical conditions [e.g., diuretics, ACE inhibitors, or angiotensin receptor blockers (ARBs)] (see PRECAUTIONS: Drug Interactions ).
Patients at greatest risk of this reaction are those with impaired renal function, heart failure, liver dysfunction, those taking diuretics and ACE inhibitors and the elderly.
This interaction should be given consideration in patients taking NSAIDs concomitantly with ACE Inhibitors.
Diuretics: Clinical studies, as well as post-marketing observations have shown that NSAIDs can reduce the natriuretic effect of furosemide and thiazides in some patients.
Patients taking thiazides or loop diuretics may have impaired response to these therapies when taking NSAIDs.
From the Fosinopril and hydrochlorothiazide (Fosinopril Sodium and Hydrochlorothiazide) label · effective 2024-04-28
The diuretic, natriuretic, and antihypertensive effects of thiazide diuretics may be reduced by concurrent administration of nonsteroidal anti-inflammatory agents ; the effects (if any) of these agents on the antihypertensive effect of fosinopril sodium and hydrochlorothiazide have not been studied.
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.