Dosing & Administration
Adult Dose
ED: 50 mg PO 1 hour before sexual activity. PAH: 20 mg PO TID.
Pediatric Dose
PAH only (specialist dosing).
Renal Adjustment
CrCl < 30: Start at 25 mg for ED.
Hepatic Adjustment
Severe impairment: Start at 25 mg for ED.
Safety & Special Populations
Pregnancy Category
B
Lactation Safety
Compatible.
Contraindications & Adverse Effects
Contraindications
- Concurrent use of nitrates (e.g., Nitroglycerin)
- Riociguat use
Common Adverse Effects
- Headache
- Flushing
- Priapism
- Visual changes (blue tint)