Choosing Between Sildenafil and Tadalafil

Tadalafil and sildenafil are the two most common treatments for erectile dysfunction. Both have a long track record, and both are now available as lower-cost generics. The real question is usually not which one is "better", but which one matches your plans.

Generic sildenafil is usually taken about an hour before sex and lasts around four to five hours. A heavy meal can delay the effect. Generic tadalafil, on the other hand, can work for up to 36 hours, and food makes little difference. Many men also take a low daily dose of tadalafil so they never need to time a tablet.

To compare the two in more detail, see this plain-English guide covers doses, timing and safety.

Safety first: never take either medicine with nitrate heart medicines or with "poppers". Tell your doctor about any alpha-blockers. Common side effects are headache, flushing, a blocked nose and indigestion. Get urgent help for an erection lasting more than four hours or sudden changes in vision.

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

When you buy medicine online, make sure the strength matches your prescription and read the patient leaflet. A valid prescription is required for every order of a prescription medicine. More practical tips are in this article.

This is general information, not medical advice. Always check with your doctor before starting a new medicine.