---
title: "What is rapamycin? Uses, risks, and basics"
description: "Rapamycin is a prescription drug that suppresses the immune system and is FDA approved for certain transplant and rare lung uses, with important risks."
canonical: "https://www.vitalsvault.com/treatment-learn/what-is-rapamycin"
last-updated: 2026-08-22
---

# What is rapamycin? Uses, risks, and basics

> Rapamycin is a prescription drug that suppresses the immune system and is FDA approved for certain transplant and rare lung uses, with important risks.

---

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