Although Tadarise 20 is generally harmless, it may cause specific side adverse effects. It is best to take it according to the prescription of your doctor. Certain people might have flu-like symptoms, such as headache, flushing, indigestion or diarrhea. If you are nursing or pregnant, it is not recommende to use Tadarise. Tadarise is not recommend for anyone who is younger than 18 years old. If you have an allergy to one of its ingredients, do not consume Tadarise after consuming alcohol.