Drug interactions
Avanafil + Sapropterin
Severity: Moderate
Avanafil and Sapropterin: 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
Sapropterin may increase nitric oxide synthesis, and combining it with a PDE5 inhibitor could enhance vasodilation and lower blood pressure. Clinically significant hypotension is possible but data are limited.
What this interaction means in plain words
Avanafil and Sapropterin 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; Sapropterin belongs to Miscellaneous.
Why it happens
Theoretical additive vasodilation via enhanced nitric oxide production and reduced cGMP breakdown.
What to do
Monitor blood pressure and for dizziness when combining. Counsel the patient to report symptoms of hypotension.
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 Avanafil
- Amyl nitrite + Avanafil Contraindicated
- Atazanavir + Avanafil Contraindicated
- Avanafil + Clarithromycin Contraindicated
- Avanafil + Conivaptan Contraindicated
- Avanafil + Darunavir Contraindicated
- Avanafil + Fosamprenavir Contraindicated
Other interactions of Sapropterin
- Carbidopa-entacapone-levodopa + Sapropterin Moderate
- Carbidopa-levodopa + Sapropterin Moderate
- Levodopa + Sapropterin Moderate
- Methotrexate + Sapropterin Moderate
- Phenobarbitone + Sapropterin Moderate
- Pyrimethamine + Sapropterin Moderate
Frequently asked questions
Can I take Avanafil with Sapropterin?
MediHelp rates the interaction as moderate. Avanafil and Sapropterin 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. Sapropterin may increase nitric oxide synthesis, and combining it with a PDE5 inhibitor could enhance vasodilation and lower blood pressure. Clinically significant hypotension is possible but data are limited.
How serious is the interaction between Avanafil and Sapropterin?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood pressure and for dizziness when combining. Counsel the patient to report symptoms of hypotension.
What other medicines interact with Avanafil?
MediHelp also lists interactions of Avanafil with, for example, Amyl nitrite, Atazanavir, Clarithromycin. The full list is on the Avanafil page.
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