Skip to main content
SupplementScience

Rapamycin (Longevity Context) — Frequently Asked Questions

This content is for informational purposes only and does not constitute medical advice. Consult your healthcare provider before starting any supplement. Full disclaimer

Frequently Asked Questions

Is rapamycin safe for longevity use?

Rapamycin has a well-characterized side effect profile from decades of transplant medicine use, but longevity protocols use much lower, intermittent doses. Weekly dosing of 3-6mg appears to minimize immunosuppression while retaining mTOR inhibition benefits. However, long-term safety data for off-label longevity use is limited. This must be used under expert medical supervision with regular blood monitoring for lipids, glucose, and immune function.

How is longevity dosing different from transplant dosing?

Transplant patients take rapamycin daily at 2-5mg to continuously suppress immune function and prevent organ rejection. Longevity protocols use intermittent dosing — typically 3-6mg once weekly — which allows mTOR to reactivate between doses. This pulsed approach appears to provide anti-aging benefits (autophagy, reduced senescence) while minimizing immunosuppression. Mannick et al. showed this intermittent approach actually enhanced immune function.

Can I buy rapamycin as a supplement?

No. Rapamycin (sirolimus) is a prescription medication that requires a doctor's prescription. It is not available as an over-the-counter supplement. Some longevity-focused physicians prescribe it off-label based on the research, but it requires regular blood monitoring. Never attempt to self-source or self-medicate with rapamycin — the drug interactions and side effects require professional management.

Full Rapamycin (Longevity Context) Guide

References

  1. (). Rapamycin fed late in life extends lifespan in genetically heterogeneous mice. Nature. DOI
  2. (). mTOR inhibition improves immune function in the elderly. Science Translational Medicine. DOI
  3. (). Rapamycin for longevity: opinion article. Aging. DOI