Drug interactions
Avanafil + Hydrochlorothiazide-telmisartan
Severity: Moderate
Avanafil and Hydrochlorothiazide-telmisartan: moderate 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
Avanafil has vasodilatory activity and can add to the blood pressure lowering of telmisartan and hydrochlorothiazide. Symptomatic hypotension may occur, particularly in volume-depleted patients.
What this interaction means in plain words
Avanafil and Hydrochlorothiazide-telmisartan can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Avanafil belongs to Genitourinary; Hydrochlorothiazide-telmisartan belongs to Cardiovascular.
Why it happens
Additive vasodilation from PDE5 inhibition with antihypertensive agents.
What to do
Use the lowest avanafil dose initially and monitor blood pressure. Counsel on orthostatic symptoms.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Hydrochlorothiazide-telmisartan
- Aliskiren + Hydrochlorothiazide-telmisartan Contraindicated
- Dofetilide + Hydrochlorothiazide-telmisartan Contraindicated
- Hydrochlorothiazide-telmisartan + Sparsentan Contraindicated
- Aldesleukin + Hydrochlorothiazide-telmisartan Major
- Amifostine + Hydrochlorothiazide-telmisartan Major
- Amiloride + Hydrochlorothiazide-telmisartan Major
Other interactions of Avanafil
- Amyl nitrite + Avanafil Contraindicated
- Atazanavir + Avanafil Contraindicated
- Avanafil + Clarithromycin Contraindicated
- Avanafil + Conivaptan Contraindicated
- Avanafil + Darunavir Contraindicated
- Avanafil + Fosamprenavir Contraindicated
Frequently asked questions
Can I take Avanafil with Hydrochlorothiazide-telmisartan?
MediHelp rates the interaction as moderate. Avanafil and Hydrochlorothiazide-telmisartan can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Avanafil has vasodilatory activity and can add to the blood pressure lowering of telmisartan and hydrochlorothiazide. Symptomatic hypotension may occur, particularly in volume-depleted patients.
How serious is the interaction between Avanafil and Hydrochlorothiazide-telmisartan?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest avanafil dose initially and monitor blood pressure. Counsel on orthostatic symptoms.
What other medicines interact with Hydrochlorothiazide-telmisartan?
MediHelp also lists interactions of Hydrochlorothiazide-telmisartan with, for example, Aliskiren, Dofetilide, Sparsentan. The full list is on the Hydrochlorothiazide-telmisartan page.
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