Rapamycin
Rapamycin (Sirolimus) for Longevity
An mTOR inhibitor originally used in organ transplant patients, now emerging as the most evidence-backed pharmacological longevity intervention. The landmark Harrison 2009 study showed lifespan extension in mice, and the PEARL trial (2025) confirmed safety in healthy adults at longevity doses.
How Rapamycin Works
Rapamycin (sirolimus) binds to the intracellular protein FKBP12, and this complex inhibits mechanistic target of rapamycin complex 1 (mTORC1), a master regulator of cell growth, proliferation, and metabolism. Inhibiting mTORC1 activates autophagy (cellular self-cleaning), reduces protein synthesis, shifts metabolism toward a more catabolic state, and enhances cellular stress resistance. In longevity research, rapamycin is the most consistently life-extending pharmacological intervention across species (yeast, worms, flies, mice), extending mouse lifespan by 10-25%. Intermittent low-dose protocols aim to capture longevity benefits while minimizing immunosuppressive side effects.
📊 Evidence by Outcome
9-14% lifespan extension in genetically diverse mice (Harrison 2009 Nature). Replicated at 3 NIA ITP sites. Strongest animal longevity drug data of any compound.
20 studies • Consistency: High • Effect: Large
Two RCTs (Mannick 2014, 2018) showed ~20% improved vaccine response and significantly reduced infection rates for 12 months after 6 weeks of low-dose treatment.
5 studies • Consistency: High • Effect: Moderate
Chung et al. 2019 RCT showed topical rapamycin reduced senescence markers (p16INK4A) and increased collagen VII in human skin. Promising but small sample.
2 studies • Consistency: Moderate • Effect: Moderate
Key Research
Peer-Reviewed Evidence • 4 Citations
Rapamycin fed late in life extends lifespan in genetically heterogeneous mice
Harrison DE et al.•Nature•2009•PMID: 19587680
Key Finding: First demonstration that a drug can extend mammalian lifespan. +14% for females, +9% for males at 3 independent NIA ITP sites.
View on PubMedmTOR inhibition improves immune function in the elderly
Mannick JB et al.•Sci Transl Med•2014•PMID: 25540326
Key Finding: RAD001 enhanced influenza vaccine response by ~20% in elderly volunteers and reduced PD-1 exhaustion markers.
View on PubMedTORC1 inhibition enhances immune function and reduces infections in the elderly
Mannick JB et al.•Sci Transl Med•2018•PMID: 29997249
Key Finding: Phase 2a RCT: 6 weeks of TORC1 inhibition significantly decreased infection rates for a full year (P=0.001).
View on PubMedInfluence of rapamycin on safety and healthspan metrics after one year: PEARL trial
Moel M et al.•Aging•2025•PMID: 40188830
Key Finding: First year-long RCT of rapamycin in healthy adults. Safety equal to placebo. Women on 10mg/week showed improved lean mass and pain.
View on PubMedCitations sourced from PubMed, Cochrane Library, and peer-reviewed journals. Study findings are summarized for accessibility. Always consult the original publication for full methodology and results.
Side Effects & Safety
Interactions & Contraindications
Drug Interactions
- •CYP3A4 inhibitors (ketoconazole, erythromycin, clarithromycin, grapefruit) — dramatically increase rapamycin blood levels, risking toxicity
- •CYP3A4 inducers (rifampin, phenytoin, carbamazepine, St. John's Wort) — significantly reduce rapamycin levels
- •Calcineurin inhibitors (cyclosporine, tacrolimus) — additive nephrotoxicity and immunosuppression
- •ACE inhibitors — increased risk of angioedema when combined with mTOR inhibitors
- •Statins — rapamycin increases statin levels, raising myopathy/rhabdomyolysis risk
- •Live vaccines — contraindicated due to immunosuppression
Supplement Interactions
- •Resveratrol — both affect mTOR pathway; combined effect unclear
- •Berberine and metformin — overlap in AMPK activation; combined effects on mTOR signaling complex
- •High-dose vitamin D — rapamycin may affect vitamin D metabolism
Food & Timing
- •Grapefruit and Seville oranges — potent CYP3A4 inhibitors that dramatically increase rapamycin blood levels (must be avoided)
- •High-fat meals significantly increase rapamycin absorption (Cmax increased by 35%)
- •Consistency in meal timing relative to dosing is important for stable blood levels
Who Should Avoid
- •Active serious infections — rapamycin suppresses immune function
- •Severe hepatic impairment — impaired drug metabolism
- •Hypersensitivity to rapamycin (sirolimus) or any mTOR inhibitor
- •Pre-existing severe hyperlipidemia — rapamycin worsens lipid profiles
- •Planned surgery within 2-4 weeks — impairs wound healing
- •Pregnancy and breastfeeding — teratogenic; effective contraception required
- •Active malignancy (paradoxically, despite potential anti-cancer properties, immunosuppression can promote certain cancers)
📋 Protocol Snapshot
Protocols are for informational purposes only. Always consult a qualified healthcare provider before starting any treatment protocol.
Cost Guide
AED 200-800/month
Limited UAE availability. Costs may vary for international sourcing.
Frequently Asked Questions
No. Rapamycin is FDA-approved only for preventing organ transplant rejection and treating certain cancers (as everolimus/temsirolimus). All longevity use is off-label. There are no completed human longevity trials, though several are underway (PEARL, VALID). Current longevity use is based on compelling animal data and biological plausibility.
Rapamycin requires a prescription and is available in UAE pharmacies for approved indications. Some longevity-focused physicians in Dubai may prescribe it off-label after thorough evaluation. This is a serious pharmaceutical that requires blood monitoring (lipids, CBC, kidney function, glucose). Do not source it without medical supervision.
Transplant patients take 1-5mg daily with target blood trough levels of 4-20 ng/mL. Longevity protocols typically use 1-6mg once weekly (intermittent dosing) to maintain low average blood levels. The intermittent schedule aims to inhibit mTORC1 while allowing mTORC2 recovery, potentially avoiding immunosuppressive and metabolic side effects. Optimal longevity dosing is not yet established.
At minimum: complete blood count, fasting lipid panel, fasting glucose/HbA1c, liver function tests, kidney function (creatinine, BUN), and rapamycin trough levels. Testing is typically done at baseline, 1 month, 3 months, then every 3-6 months. Many longevity clinics in the UAE offer comprehensive monitoring panels.
For consistent pharmacokinetics, take it the same way each time. High-fat meals increase absorption by approximately 35%. Most longevity physicians recommend taking it consistently either with or without food. Avoid grapefruit and Seville oranges entirely, as they dramatically increase blood levels through CYP3A4 inhibition.
Where to Get It (UAE)
Related Treatments
Medical Disclaimer: The information on this page is for educational purposes only and is not intended as medical advice. Kamura Scores reflect a combination of research evidence, safety, accessibility, and value — they are not clinical recommendations. Research citations are provided for reference; always consult the original publications for complete study details. Consult a qualified healthcare provider before starting, stopping, or modifying any treatment. Individual results may vary.