Takes effect in: 1 hour

Lasts up to: 4 hours

Prices from:£1.95 / tablet

Sildenafil tablets

Stronger erections, better sex

Sildenafil is an effective treatment for erectile dysfunction. It contains the same active ingredient as branded alternatives.

Sildenafil works by encouraging more blood to flow to the penis, ensuring a strong erection when you need one. It’s effective for 82% of men.*

*Guay et al. “Efficacy and Safety of Sildenafil Citrate for Treatment of Erectile Dysfunction in a Population With Associated Organic Risk Factors.” Journal of Andrology (2013).

How it works

Sildenafil: the science

Stimulation increases blood flow

When you get aroused, your body produces a molecule called cGMP which helps to stimulate an erection by increasing blood flow to the penis.

Restricted blood flow inhibits an erection

However, for people experiencing erectile difficulties, an enzyme known as PDE5 normally breaks cGMP down, restricting blood flow and causing the erection to subside.

Medication promotes a firmer erection

Sildenafil blocks the action of PDE5, allowing more blood to flow to the penis. The resulting erection is firmer and usually lasts long enough to allow for satisfying sex.

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Your questions answered


Sildenafil: what you need to know


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