Tadalafil and sildenafil are the two most widely prescribed treatments for erectile dysfunction. Both have a long track record, and both are sold as lower-cost generics. The main question is often not which one is "better", but which one matches your plans.
Sildenafil is normally taken about an hour before sex and works for four to five hours. A high-fat meal can delay the effect. Generic tadalafil, on the other hand, can last for up to 36 hours, and food has more info little effect. Some men also take a low daily dose of tadalafil so they never need to time a tablet.
If you want a simple comparison, this practical guide explains the differences step by step.
Safety first: never take either medicine with nitrate heart medicines or with "poppers". Let your doctor know about any blood pressure tablets. 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 sudden changes in vision.
More is not always better. The licensed doses are 25, 50 or 100 mg for sildenafil and 2.5 to 20 mg for tadalafil. Bigger doses do not bring better results, but they do make side effects more likely. 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. You can read more on this page.
This is general information, not medical advice. Always check with your doctor before starting a new medicine.