Tadalafil, the active component of Tadalista Professional , is a medication used to treat erectile dysfunction in males. You can take Tadalista Professional whenever you like. All you have to do is remember to take it before sexual activity. The dosage for Tadalista Professional should be taken as prescribed by your doctor, one hour before sexual activity, or between one and four hours prior. Chew or crush the tablet, but swallow it whole with water or milk. Keep your medication hidden from those in your immediate family and vicinity. Never share the tablet with someone you don't know about. Recommend them to the doctor at all times.