(Generic Viagra)

You’ll have heard of Viagra, but maybe not sildenafil. They’re essentially identical (both contain the same active ingredient). Sildenafil works by establishing reliable blood flow to the penis, ensuring a strong erection, when you need it.

  • Time to take effect: 1 Hour

  • Lasts up to: 4 Hours

  • Price: £2.90 / pill (50mg)

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How it works

  • After a brief clinical consultation, where you’ll answer a few questions about your medical history, one of our dedicated clinicians will assess whether your chosen treatment is suitable for you.
  • Once your treatment arrives, we’re sure you’ll want to give it a whirl. You can expect it to start working one hour after you’ve taken it, and the effects will last for four hours. And no, that doesn’t mean a four hour long erection - the benefits only become evident when you’re sexually aroused or stimulated. Foreplay is, and always will be, your friend.
  • Once you’re aroused, sildenafil helps the blood vessels to your penis to stay relaxed and open, allowing for increased blood flow. In practice, this means a harder and longer-lasting erection, exactly when you need it.
Sildenafil Sildenafil

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Sildenafil: The facts you need to know

  • What can I expect to happen when I take sildenafil?

    Taking sildenafil won’t result in an instantaneous erection, meaning a little bit of planning is required. In most cases, sildenafil starts working an hour after you take it, and the effects last for four to five hours. This means there’s a window of about three hours in which your erection should feel harder and last longer than before, and in which you can plan to have sex.

    Sildenafil does not alter your libido or sexual desire — you’ll still need to be sexually aroused for it to take effect. And it doesn’t have any impact on your testosterone levels.

    For those thinking of having sex after dinner, a word of note: having a large meal at the same time as taking sildenafil can delay the effects by about an hour.

  • Can I take a dose of sildenafil more than once in a day?

    In short, no. The recommended starting dose for sildenafil is 50mg taken only once per day, on the days you intend to have sex. Depending on your response, this can be changed, although the maximum dose is 100mg per day, still taken as one single dose.

    If taking sildenafil is proving difficult to coordinate with sexual activity, or if spontaneity is important to you, tadalafil may be a better alternative. It works similarly to sildenafil, but it starts working within 30 minutes and its effects last up to 36 hours.

  • Why is sildenafil cheaper than Viagra?

    Sildenafil is the generic version of Viagra, a brand name used by Pfizer, the first company to synthesise and test the drug (a process which takes considerable time and incurs large costs for pharmaceutical companies).

    After a certain period of time, the formula for the medicine is disclosed to other, generic manufacturers who can make it at a lower cost because they don’t have to account for the original overheads for development. In both Viagra and sildenafil, the active ingredient is the same.

  • Is sildenafil safe to use long term?

    The results of a study looking at men using sildenafil, as needed, over the course of four years suggest that it is perfectly safe and effective when used over a prolonged period of time.

    In general, if you’re finding you need to take sildenafil for ED over a long period, it’s worth looking at the underlying causes (with the help of your doctor). There’s also plenty of information on the possible root causes of ED in Numan’s Erection Handbook.

  • What are the common side effects of sildenafil?

    While most users will not experience any unwanted side effects from sildenafil, there are some commonly reported ones to be aware of. These include:

    • - Headaches
    • - Dizziness, feeling faint
    • - Nasal congestion/stuffiness
    • - Feeling hot or flushed, including facial flushing
    • - Nausea
    • - Indigestion
    • - Visual changes (including colour changes, sensitivity to light and blurred vision)

    There are a number of other side effects you could experience when taking sildenafil, and some prior medical conditions which might mean you should not take the medication. A complete list is available in the Patient Information Leaflet (PIL) enclosed in your medication, which you should always read before taking it for the first time.

  • Does drinking alcohol make sildenafil less effective?

    Drinking alcohol causes a drop in blood pressure which, when erectile dysfunction is already present, can make it even more difficult to get or maintain an erection. It can also worsen some of sildenafil’s side effects, such as headaches, dizziness and feeling faint.

Prescriptions from £22.95/month (£2.90/pill)

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The Book of Erections

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The Book of Erections