Drug interactions
Hydrochlorothiazide-irbesartan + Metoprolol
Severity: Minor
Hydrochlorothiazide-irbesartan and Metoprolol: minor interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Combining a beta-blocker with an angiotensin receptor blocker and a thiazide produces additive blood pressure lowering, which is often intended but can cause hypotension, dizziness or bradycardia. Thiazide-related metabolic effects such as hyperglycemia may also be less noticeable with beta-blockade. Irbesartan and hydrochlorothiazide also affect potassium in opposite directions.
What this interaction means in plain words
Hydrochlorothiazide-irbesartan and Metoprolol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Hydrochlorothiazide-irbesartan belongs to Cardiovascular; Metoprolol belongs to Cardiovascular.
Why it happens
Additive pharmacodynamic antihypertensive effects through different pathways (beta-blockade, angiotensin receptor blockade, diuresis).
What to do
Monitor blood pressure and heart rate when starting or adjusting doses. Check potassium and renal function periodically, and warn patients about orthostatic dizziness.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Hydrochlorothiazide-irbesartan
- Aliskiren + Hydrochlorothiazide-irbesartan Contraindicated
- Dofetilide + Hydrochlorothiazide-irbesartan Contraindicated
- Hydrochlorothiazide-irbesartan + Sparsentan Contraindicated
- Aldesleukin + Hydrochlorothiazide-irbesartan Major
- Amifostine + Hydrochlorothiazide-irbesartan Major
- Amiloride + Hydrochlorothiazide-irbesartan Major
Other interactions of Metoprolol
- Metoprolol + Thioridazine Contraindicated
- Amifostine + Metoprolol Major
- Amiodarone + Metoprolol Major
- Atenolol-chlorthalidone + Metoprolol Major
- Atenolol + Metoprolol Major
- Betaxolol + Metoprolol Major
Frequently asked questions
Can I take Hydrochlorothiazide-irbesartan with Metoprolol?
MediHelp rates the interaction as minor. Hydrochlorothiazide-irbesartan and Metoprolol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Combining a beta-blocker with an angiotensin receptor blocker and a thiazide produces additive blood pressure lowering, which is often intended but can cause hypotension, dizziness or bradycardia. Thiazide-related metabolic effects such as hyperglycemia may also be less noticeable with beta-blockade. Irbesartan and hydrochlorothiazide also affect potassium in opposite directions.
How serious is the interaction between Hydrochlorothiazide-irbesartan and Metoprolol?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood pressure and heart rate when starting or adjusting doses. Check potassium and renal function periodically, and warn patients about orthostatic dizziness.
What other medicines interact with Hydrochlorothiazide-irbesartan?
MediHelp also lists interactions of Hydrochlorothiazide-irbesartan with, for example, Aliskiren, Dofetilide, Sparsentan. The full list is on the Hydrochlorothiazide-irbesartan page.
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