Viagra Super Active and grapefruit: a real interaction?
Grapefruit is famous as the juice that interacts with medications, and the warning is real for a number of drugs. Whether it matters specifically for Viagra Super Active (Sildenafil Citrate) at 100mg depends on whether the active ingredient Sildenafil Citrate is metabolised by CYP3A4 in the gut wall and how much that pathway contributes to first-pass metabolism.
The CYP3A4 mechanism
Grapefruit (and its juice) inhibits CYP3A4 enzymes in the gut wall, increasing the absorbed dose of medications metabolised by that enzyme. For drugs in the Erectile Dysfunction (ED) class that go through CYP3A4 first-pass metabolism, regular grapefruit consumption can raise plasma levels of Sildenafil Citrate by a clinically meaningful margin and amplify side effects.
What to do with Viagra Super Active
According to the prescribing information for Sildenafil Citrate, if grapefruit is flagged as an interaction, the safest practice is to avoid grapefruit entirely or to discuss timing with the prescriber. The active sildenafil citrate inhibits PDE5 in penile tissue during sexual arousal, allowing cyclic GMP to accumulate, smooth muscle to relax and blood inflow to increase. A small occasional serving may be tolerable; daily large servings around the time of Viagra Super Active dosing are not recommended at 100mg.
Frequently asked questions
Can I eat grapefruit while on Viagra Super Active? ▾
For some Erectile Dysfunction (ED) medications, grapefruit is best avoided or limited because of CYP3A4 inhibition. Whether Viagra Super Active specifically is affected depends on Sildenafil Citrate; the prescribing information lists this. When in doubt, ask the pharmacist or check the patient leaflet.
How much grapefruit is too much with Viagra Super Active? ▾
For drugs where the interaction matters, even modest daily grapefruit intake (one whole grapefruit or one large glass of juice) can shift drug levels noticeably. For Viagra Super Active at 100mg, individual tolerance varies; the cautious choice is to avoid grapefruit if any interaction is mentioned.
More on Viagra Super Active
- With alcoholViagra Super Active and alcohol — is it safe to drink?
- With foodShould Viagra Super Active be taken with food?
- Side effectsViagra Super Active side effects: common, rare and warning signs
- Dosage guideViagra Super Active dosage guide: how much to take and when
- OnsetHow fast does Viagra Super Active start working?
- DurationHow long does Viagra Super Active last?
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