Erectile Dysfunction Tablets

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Prices from £12.00

Simply fill in a brief consultation questionnaire and one of our doctors will review your request today.

Erectile dysfunction (ED) is a common condition where you fail to get or keep an erection. Tablets to treat erectile dysfunction are called PDE-5 inhibitors.

You’ve probably heard of Viagra and Viagra Connect but there are many others available as well such as Levitra, Tadalafil, Cialis, Spedra. They all work in a similar way but their side effects and who they are most suitable for varies depending on the active ingredient in the tablet. Fill in our brief questionnaire and our experienced doctors can recommend the ED treatment that will work best for you.

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Frequently asked questions

What non-prescription erection pills are there?

Viagra Connect is the only prescription-free erection pill that works. But you still need an assessment to get it, either online or in a pharmacy.

Other prescription-free pills don’t work. There are some dietary and herbal supplements which people use to try to improve their erections. However, there isn’t a lot of research into how well they work, or even how safe they are to take.

Tips for taking erection pills

When you first take an erectile dysfunction tablet, you may find that it doesn’t have the effect that you’re looking for. This is perfectly normal – there are a few simple things that you can do to get the best results:

  • Make sure you get enough sexual stimulation as well as taking the pill. It’s common to get frustrated if you don’t get an erection straight away after taking an erection pill. But, it’s important to remember that these pills work by enhancing your natural response to sexual stimulation and so will not give an erection without stimulation
  • Don’t eat just before taking some medicines. Viagra, Sildenafil, and Levitra work better if you eat two or three hours before taking them. Cialis works just as well on an empty or full stomach
  • Make sure you wait long enough before trying to get an erection. Viagra, Sildenafil and Levitra need around 1 hour after being taken to work best. Cialis may need as long as 3 hours
  • Try a few times, even if it doesn’t work the first time. If you can, try out a new medicine at least six times before changing the dose or even switching to another medication. Not getting results straight away can be discouraging, but often your body simply needs to get used to the medicine

Which erection pill works best?

Most tried and tested

Viagra, Sildenafil and Levitra all work in a similar way. They’re normally taken 1 hour before sexual activity, and work for 4 to 6 hours.

Viagra and Sildenafil seem to be effective for the highest percentage of men, with up to 80% saying that it works for them in some studies.


Cialis has the advantage that it works for a much longer time than the other medicines. Some people find that they still experience the effects a day and a half after taking it. This means Cialis can be a great option for people who don’t always want to plan sexual activity a long time in advance.


Spedra is the newest medicine of the five that are commonly prescribed for erection problems. It works much more quickly than the other medicines, with some people reporting that it takes just 15 minutes to work. This makes it another option for people who don’t want to plan sexual activity very far in advance.

Where can I get erection pills?

The most convenient way to get erection pills is through an online doctor service.

At ZAVA, for example, you’ll complete a short assessment, with a few questions about you and your health. One of our doctors will then review your answers, and prescribe medication if there’s no medical reason not to.

You should only buy medications online from a source that you trust. It can be tempting to buy from another source, especially if you already know which medicines work best for you. But if a seller isn’t regulated, there is no way of knowing that what you’re buying is safe, or that it’s going to work.

You can also buy erection pills in person. Your doctor or GP may give you a prescription, which you can take to any pharmacy. But, if you’re short of time or you’d rather avoid a face-to-face consultation, an online doctor service could work well for you.

Supplements that aren’t medication can be bought online or in specialist shops. Again, you should make sure that these online sellers or shops are trustworthy and fully regulated.

Medically reviewed by:
Dr Babak Ashrafi Clinical Lead for Service Expansion
Accreditations: BSc, MBBS, MRCGP (2008)

Babak studied medicine at King’s College London and graduated in 2003, having also gained a bachelor’s degree in Physiology during his time there. He completed his general practice (GP) training in East London, where he worked for a number of years as a partner at a large inner-city GP practice. He completed the Royal College of GPs membership exam in 2007.

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Last reviewed: 28 Jan 2022

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