Tadalafil and sildenafil are the two most widely prescribed treatments for erectile dysfunction. Both have a long track record, and both are sold as cheaper generics. The main question is often not which one is website "better", but which one matches your plans.
Sildenafil is usually taken about an hour before sex and lasts around 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. Many men also take a low daily dose of tadalafil so they do not have to plan ahead.
For a side-by-side look, this practical guide explains the differences step by step.
A few safety points: never take either medicine with nitrate heart medicines or with "poppers". Let your doctor know about any alpha-blockers. The usual side effects are headache, flushing, a blocked nose and indigestion. Get urgent help 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. Bigger doses do not reliably work better, but they do raise the risk of side effects. Stick to the dose on your prescription.
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. There is more detail in this tadalafil and sildenafil guide.
This article is for general information only. Speak to your doctor or pharmacist before starting any medicine.