Medications
How long has Mounjaro been available?
August 4, 2026 · 2 min read
The short answer
Mounjaro (tirzepatide) received FDA approval in May 2022 for the treatment of type 2 diabetes, so it has been available in the United States since 2022, making it a relatively new medication.
The same active ingredient was later approved for chronic weight management under the brand name Zepbound in November 2023. Because tirzepatide is newer than semaglutide, its very-long-term data is still accumulating. This is general information, not medical advice.
The short answer
Mounjaro, the brand name for tirzepatide, was approved by the US Food and Drug Administration in May 2022 for the treatment of type 2 diabetes. That means it has been available in the United States since 2022, which makes it a relatively new medication compared with some other diabetes drugs. If you are reading this in the mid-2020s, Mounjaro has been on the market for a few years. This article is general information and does not replace advice from your clinician.
Mounjaro and Zepbound: same drug, two approvals
Tirzepatide first reached the market as Mounjaro for diabetes. The same active ingredient was then approved specifically for chronic weight management under a different brand name, Zepbound, in November 2023. So while the weight-loss brand is newer still, the underlying medicine, tirzepatide, has been in use since the 2022 Mounjaro approval. Our post on is tirzepatide the same as Mounjaro explains the naming, and Mounjaro dosing schedule covers how it is taken.
How it compares to other GLP-1 drugs
Tirzepatide is newer than semaglutide, the ingredient in Ozempic and Wegovy, which was first approved several years earlier. Tirzepatide is also slightly different in how it works, acting on two gut-hormone receptors rather than one, which is part of why it has drawn so much attention. If you want the history of the semaglutide side, see how long has Ozempic been available, and for the head-to-head, semaglutide vs tirzepatide.
What "newer" means for you
A few years on the market is enough to establish strong trial evidence for how well tirzepatide works and its common side effects, which are well documented. What is still accumulating is the very-long-term, decade-plus real-world picture, simply because the drug has not existed that long. That is not a red flag; it is true of any newer medication. It is one reason keeping your own accurate record of doses and how you respond, in something like DoseLog, is useful, and a reason to keep decisions with your clinician. This article is general information, not medical advice.
Questions people ask
How long has Mounjaro been available?
Mounjaro (tirzepatide) was approved by the FDA in May 2022 for type 2 diabetes, so it has been available in the United States since 2022. That makes it a relatively new medication, on the market for a few years.
When was Mounjaro approved by the FDA?
Mounjaro was approved in May 2022 for the treatment of type 2 diabetes. The same active ingredient, tirzepatide, was later approved for chronic weight management under the brand name Zepbound in November 2023.
Is Mounjaro newer than Ozempic?
Yes. Mounjaro (tirzepatide) was approved in 2022, while Ozempic (semaglutide) was approved several years earlier. Tirzepatide also acts on two gut-hormone receptors rather than one, which is one of the differences between the two medications.
Is Mounjaro safe if it is relatively new?
A few years on the market provides strong trial evidence for how tirzepatide works and its common side effects. The very-long-term real-world data is still accumulating simply because the drug is newer. Discuss the benefits and risks for your situation with your clinician.
References
- 1.Mounjaro and Zepbound (tirzepatide) prescribing information: dosing, adverse reactions, and warnings. View label on DailyMed ↗
- 2.Jastreboff AM et al. Tirzepatide Once Weekly for the Treatment of Obesity. SURMOUNT-1. NEJM 2022. Read on NEJM ↗
- 3.FDA approval history of tirzepatide (Mounjaro and Zepbound). Find on PubMed ↗
This article is general education, not medical advice. DoseLog is a tracking and reflection tool. Decisions about your medication, dose, and symptoms belong with a licensed clinician.
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