ED Adult 10 mg prior to anticipated sexual activity as needed.
Patient in whom tadalafil 10 mg does not produce adequate effect Max daily dose: 20 mg. May be taken at least 30 min to 36 hr prior to sexual activity.
Patient who anticipates frequent use of tadalafil Initially 2.5 mg once daily, may be increased to 5 mg once daily.
Moderate renal impairment (CrCl 31-50 mL/min) Initially 5 mg once daily. Max dose: 10 mg not more than once in every 48 hr.
Severe renal impairment (CrCl <30 mL/min) or on hemodialysis Max dose: 5 mg not more than once in every 72 hr.
Patient taking concomitant CYP3A4 potent inhibitor (eg, ketoconazole or ritonavir) Max dose: 10 mg once every 72 hr when used as needed. Max once daily dose: 2.5 mg.