Tirzepatide
Mounjaro (tirzepatide) is a once-weekly injectable prescription medication used to treat type 2 diabetes in adults. It works as a dual GIP/GLP-1 receptor agonist, helping to improve blood sugar control by stimulating insulin release, reducing glucagon secretion, and promoting feelings of fullness. This medication is intended to be used alongside diet and exercise, and is not recommended for people with type 1 diabetes.
Mounjaro is a weekly injectable medication for type 2 diabetes that helps control blood sugar through dual hormone receptor activation.
Key facts at a glance
- RxNorm
- 2601734
- Generic
- Mounjaro
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Mounjaro is prescribed for adults with type 2 diabetes to improve blood glucose control. It is used in conjunction with diet and exercise and may also promote weight loss as a secondary benefit.
Mounjaro activates both GIP (glucose-dependent insulinotropic polypeptide) and GLP-1 (glucagon-like peptide-1) receptors, which stimulates insulin secretion in response to meals, suppresses glucagon release, slows stomach emptying, and reduces appetite.
Common side effects include nausea, diarrhea, decreased appetite, and vomiting. Mounjaro has a boxed warning about potential risk of thyroid C-cell tumors based on animal studies. It should not be used in patients with a personal or family history of medullary thyroid carcinoma or those with Multiple Endocrine Neoplasia syndrome type 2. This medication is not for treating type 1 diabetes or diabetic ketoacidosis.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed July 26, 2026. · Read our editorial policy