Complete dosing information for sildenafil citrate
Medical guidance required: Dosing information here is for educational purposes. Your healthcare provider will determine the appropriate dose based on your specific condition, kidney function, other medications, and medical history. Never adjust your dose without consulting your doctor or pharmacist.
Erectile dysfunction: 50mg taken 30–60 minutes before sexual activity (range 25–100mg); max once daily; Pulmonary arterial hypertension (Revatio): 20mg three times daily, 4–6 hours apart; or 10mg IV bolus 3 times daily
Pulmonary arterial hypertension in children: weight-based dosing (not covered here — specialist territory).
Severe renal impairment (CrCl <30 mL/min): start at 25mg for ED.
Hepatic impairment: start at 25mg; max 25mg for ED. Caution in PAH.