There is a general recommendation that the best time to take dosage of Tadalafil 20mg tablet is at least 30 minutes before s**ual intercourse. However, it is prohibited to take it more than once a day, or it is better put it as once in 24 hours. The active agent Tadalafil 20mg is not recommended for daily use, however occasional intake of let’s say 3-5 days in a row would not as a rule cause any bad consequences.