Tadalafil and sildenafil are the two best-known treatments for erectile dysfunction. Both help most men who try them, and both are now available as lower-cost generics. The main question is often not which one is "better", but which one suits the way you live.
Generic sildenafil is typically taken about an hour before sex and works for four to five hours. A large meal can delay the effect. Generic tadalafil, on the other hand, can last for up to 36 hours, and food has little effect. Some men also take a low daily dose of tadalafil so they do not have to plan ahead.
To compare the two in more detail, see this plain-English guide covers doses, timing and safety.
Before you start: never take either medicine with nitrate heart medicines or with "poppers". Tell your doctor about any website alpha-blockers. The usual 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.
More is not always better. 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 generic ED tablets 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 tadalafil and sildenafil guide.
This article is for general information only. Always check with your doctor before starting a new medicine.