Rapamycin: To Break or Not to Break

From the Desk of Dr. Z: AgelessRx Co-founder and Chief Medical Officer, Dr. Sajad Zalzala, shares his insights on topics related to longevity. With extensive experience and a passion for disease prevention, Dr. Z offers valuable knowledge on maximizing healthspan. Today, he explores the question: Should you take breaks from Rapamycin?

Here’s what we’ll cover in this blog post:

  • The science behind Rapamycin and mTOR inhibition
  • Weekly dosing vs. taking breaks
  • Tips for discussing Rapamycin with your provider

Rapamycin for Longevity

Rapamycin is an mTOR (mechanistic target of Rapamycin) inhibitor, originally developed to prevent organ rejection in transplant patients. Over the past decade, Rapamycin for longevity has gained attention for its potential to slow aging by inhibiting mTOR activity, which plays a key role in cellular growth and aging processes. 

The most widely supported dosing regimen for Rapamycin involves weekly administration. Studies on everolimus, a Rapamycin analog, have shown that consistent weekly dosing can improve immune function and reduce age-related decline. For instance, Dr. Joan Mannick’s research demonstrated enhanced immune response and reduced respiratory symptoms in older adults with weekly dosing over 16 weeks.

In addition, a 2023 observational survey of 333 Rapamycin users indicated that those who maintained weekly dosing during COVID-19 vaccinations experienced improved outcomes. (Read the PubMed summary)

The Case for Scheduled Breaks 

Some Rapamycin users adopt an “8 weeks on, 8 weeks off” regimen. The rationale is speculative, aiming to mimic natural biological cycles or give the mTOR pathway a rest. However, no clinical data currently supports the efficacy of this approach.

Anecdotal reports suggest that periodic breaks may reduce concerns about continuous mTOR inhibition, but the long-term benefits or risks remain unknown. Patients considering this approach should consult with their healthcare provider to weigh the potential impacts on their health goals.

Key Takeaways:

  • Weekly dosing is effective and supported by studies. Research to date supports weekly dosing for achieving mTOR inhibition with potential longevity benefits. (Read foundational study in Nature)
  • Scheduled breaks are not yet backed by clinical evidence. While some users find breaks intuitively appealing, there is no solid data to confirm their benefits or risks.
  • Personalized approaches matter. Whether you opt for continuous dosing or experiment with breaks, it’s important to align your strategy with your health goals and comfort level.

Tips for Discussing Rapamycin Dosing with Your Provider

  • Share your health and longevity goals, including any specific concerns about dosing.
  • Ask about the latest research and whether it applies to your unique health profile.
  • Discuss any side effects or challenges with adherence to find a regimen that works for you.

As more studies emerge, healthcare providers will have clearer guidelines to offer patients. Until then, collaboration and informed decision-making are key. For more information on Rapamycin and longevity, visit:


Note: The above statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.