What is the best way to take cialis for the most effective results?

See answer: After single oral-dose administration, the maximum observed plasma concentration (cmax) of tadalafil is achieved between 30 minutes and 6 hours (median time of 2 hours) which will correlate with its optimum effect with about a 36 hr window in which it may be effective. Not effected by food as compared to other ed drugs. Dose: 10 or 20 mg no more than once per 24 hrs.