Sildenafil or Tadalafil: Finding the Right Fit

Sildenafil or Tadalafil: Finding the Right Fit

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Sildenafil and tadalafil are the two most common treatments for erectile dysfunction. Both work well for most men, and both are now available as cheaper generics. The main question is often not which here one is "better", but which one fits your routine.

Sildenafil is typically taken about an hour before sex and works for four to five hours. A large meal can delay the effect. Tadalafil, on the other hand, can last for up to 36 hours, and food makes little difference. Many men also take a low daily dose of tadalafil so they do not have to plan ahead.

If you want a simple comparison, see this plain-English guide explains the differences step by step.

Before you start: never take either medicine with nitrate heart medicines or with "poppers". Let your doctor know about any blood pressure tablets. Common side effects are headache, flushing, a blocked nose and indigestion. Seek medical help straight away for an erection lasting more than four hours or any sudden loss of sight or hearing.

Do not chase higher strengths. The licensed doses are 25, 50 or 100 mg for sildenafil and 2.5 to 20 mg for tadalafil. Higher-strength tablets do not bring better results, but they do raise the risk of side effects. Only take the dose your prescriber has set.

When you buy medicine online, check the strength on the pack and read the patient leaflet. A valid prescription is required for every order of a prescription medicine. You can read more on this page.

This is general information, not medical advice. Speak to your doctor or pharmacist before starting any medicine.

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