Atenolol and chlorthalidone and Candesartan and hydrochlorothiazide interaction

Atenolol and chlorthalidone and Candesartan and hydrochlorothiazide: both prescribing labels describe an interaction that usually calls for monitoring, a dose change, or spacing the doses.

Moderate

Usually manageable with monitoring or a dose change. Tell your pharmacist you take both.

What the FDA labels say

From the Atenolol and chlorthalidone label · effective 2025-09-22

Moderate

Because of its relative beta 1 -selectivity, however, atenolol and chlorthalidone may be used with caution in patients with bronchospastic disease who do not respond to or cannot tolerate, other antihypertensive treatment.

Warningsby drug classView label on DailyMed
Moderate

Drug Interactions Atenolol and chlorthalidone may potentiate the action of other antihypertensive agents used concomitantly.

Drug interactionsby drug classView label on DailyMed
Moderate

Other Precautions In patients receiving thiazides, sensitivity reactions may occur with or without a history of allergy or bronchial asthma.

Precautionsby drug classView label on DailyMed

From the Candesartan and hydrochlorothiazide (Candesartan Cilexetil and Hydrochlorothiazide) label · effective 2025-12-22

Minor

Most epidemiologic studies examining fetal abnormalities after exposure to antihypertensive use in the first trimester have not distinguished drugs affecting the renin-angiotensin system from other antihypertensive agents.

Warningsby drug classView label on DailyMed

Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.

Open in the checker

Not 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.