Tadalista is one treatment for erectile dysfunction. Regular use, 30 to 60 minutes before sexual activity, is advised by doctors. Take the medication with a light meal. It may work better if you take it without food. However, taking Tadalista right after a heavy meal may cause it to lessen its effectiveness. It is recommended that you stop taking the product and visit your doctor as soon as possible if you get a painful erection that lasts longer than 36 hours.