The On-Demand Classic
Sildenafil
Generic sildenafil — the original PDE5 inhibitor, in fast-dissolving 50mg or 100mg tablets. Fast onset, on-demand.
Starting at $39 / mo
Benefits.
- Generic sildenafil in 50mg or 100mg — dose to your response
- Rapid onset — kicks in in ~30 minutes
- On-demand dosing, no daily commitment
- Price-accessible baseline for men new to PDE5 protocols
How it works.
Step 01
Sildenafil inhibits PDE5, elevating cGMP levels in smooth muscle tissue.
Step 02
Elevated cGMP relaxes vascular smooth muscle for healthy blood flow.
Step 03
Onset around 30 minutes, active window 4–6 hours.
Step 04
Prescribed after a licensed Loop clinician reviews your intake.
For educational reference only — not medical advice. Loop does not diagnose, treat, cure, or prevent any disease. Statements have not been evaluated by the FDA. Your protocol is built with a licensed Loop clinician based on your goals, history, and labs.