Tadalafil
Also known as: Cialis
Long-acting PDE5 inhibitor used at low daily doses on cycle for blood-pressure support, better pumps and erectile function.
Substance family
Medications for blood pressure, lipids and glucose. They appear here because these are exactly the markers most anabolic compounds push in the wrong direction.
Effects on
Which outcomes this substance acts on — descriptive, not a recommendation.
Strain profile
Where this substance is most likely to hit — a rough orientation, individually dependent on dose, duration and predisposition.
This substance works against
Dosing & protocols by goal
Rough orientation ranges as reported in harm-reduction literature — not an individual treatment plan. Doses are individual and open-ended; frequency depends on the ester or half-life.
Daily low-dose (on cycle)
AncillaryDose
2.5–5 mg / day
Frequency
1× / day
Cycle length
As needed during cycles
Low daily dosing gives smooth support for blood pressure, pumps and erectile function.
Overview
Tadalafil is a long-acting PDE5 inhibitor. In the enhancement context it is used at low daily doses for a few overlapping reasons: mild blood-pressure support, better muscle pumps, and maintaining erectile function during cycles (where blood pressure and hematocrit changes can affect it).
Mechanism of Action
By inhibiting PDE5, tadalafil increases nitric-oxide-mediated vasodilation, relaxing blood vessels. This is the basis of its effects on erectile function, its mild blood-pressure lowering, and the "better pump" many report.
Typical Context
Low-dose daily use during cycles, often alongside blood-pressure management like cardio and, where needed, telmisartan. Also used more generally for erectile function.
Side Effects & Risks
- Headache, flushing, nasal congestion, mild indigestion
- Low blood pressure, especially combined with other blood-pressure drugs
- Dangerous interaction with nitrates — must not be combined
Harm-Reduction Notes
- Never combine with nitrate medication
- Be cautious stacking with other blood-pressure-lowering agents
- Source quality matters — verify legitimate product
Legal status by region
Regulation differs considerably between jurisdictions and changes over time. This is a rough orientation, not legal advice — check the rules that apply where you are.
| Region | Regulatory status |
|---|---|
| United States | Prescription-only medicineApproved for defined indications; use outside them is off-label. |
| EU / UK | Prescription-only medicineApproved for defined indications. |
| Canada / Australia | Prescription-only medicine |
| Parts of Asia, Latin America & Middle East | Pharmacy availability variesSeveral countries dispense it without prescription in practice. Rules and enforcement differ and change. |
| Competitive sport | Check the current WADA listSome substances in this class are prohibited, others are not. |