Quick Summary
Mounjaro is not suitable for people with medullary thyroid carcinoma, MEN2, severe gastrointestinal disease, pregnancy, breastfeeding, or severe allergic reactions. BMI requirements: 30+ or 27+ with weight-related conditions. Our pharmacist assesses eligibility during consultation.
Who Is Not Eligible for Mounjaro?
Medical Review: Reviewed by registered pharmacist. Last Updated: December 2025. Location: Glasgow, Scotland.
Eligibility Criteria for Mounjaro
Mounjaro is a prescription medication that requires careful evaluation of your medical history, current health status, and weight loss goals. Understanding who is not eligible can help you determine if Mounjaro might be right for you.
BMI Requirements
To be eligible for Mounjaro, you typically need:
- BMI of 30 or higher: Classified as obese
- OR BMI of 27 or higher with weight-related conditions: Such as type 2 diabetes, high blood pressure, high cholesterol, or sleep apnea
Use our BMI calculator to check your BMI, or discuss your eligibility with our pharmacist during consultation.
Medical Conditions That Prevent Use
Absolute Contraindications
You should NOT take Mounjaro if you have:
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Medullary Thyroid Carcinoma (MTC): Personal or family history
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Multiple Endocrine Neoplasia Syndrome Type 2 (MEN 2): Personal or family history
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Severe Gastrointestinal Disease: Including severe gastroparesis or inflammatory bowel disease
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Pregnancy: Not recommended during pregnancy
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Breastfeeding: Not recommended while breastfeeding
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Severe Allergic Reactions: To tirzepatide or any component of Mounjaro
Conditions Requiring Special Consideration
Mounjaro may still be an option, but requires careful evaluation if you have:
- History of pancreatitis: Requires careful risk assessment
- Kidney disease: May need dose adjustments and monitoring
- Type 2 diabetes: May need adjustments to other diabetes medications
- Gallbladder disease: Rapid weight loss can increase risk
- Mental health conditions: May affect treatment adherence
Age Considerations
Mounjaro is approved for use in adults (18 years and older). It is not currently approved for use in children or adolescents.
Medication Interactions
Certain medications may make Mounjaro unsuitable or require adjustments. Always inform your pharmacist about all medications you're taking, including:
- Other diabetes medications
- Blood thinners
- Oral medications (absorption may be affected)
- Birth control pills (effectiveness may be reduced)
- Any other prescription or over-the-counter medications
Lifestyle Factors
While not absolute contraindications, certain lifestyle factors may affect eligibility:
- Heavy alcohol use: May increase risk of pancreatitis
- Inability to self-inject: Requires weekly injections
- Unrealistic expectations: Medication works best with lifestyle changes
- Inability to follow treatment plan: Regular monitoring is important
Frequently Asked Questions
What BMI is required for Mounjaro?
Mounjaro is typically prescribed for people with a BMI of 30 or higher, or a BMI of 27 or higher with at least one weight-related health condition such as type 2 diabetes, high blood pressure, or high cholesterol.
Can I take Mounjaro if I'm pregnant?
No, Mounjaro is not recommended during pregnancy. If you become pregnant while taking Mounjaro, contact your pharmacist immediately. Use effective contraception while on treatment.
Is Mounjaro safe for people with thyroid problems?
Mounjaro is contraindicated in people with medullary thyroid carcinoma or multiple endocrine neoplasia syndrome type 2. Other thyroid conditions may be acceptable, but your pharmacist will need to evaluate your specific situation.
Can I take Mounjaro if I have diabetes?
Yes, Mounjaro can be used in people with type 2 diabetes, but your pharmacist will need to review your medications and blood sugar control. Dose adjustments of other diabetes medications may be needed.
What medical conditions prevent Mounjaro use?
Mounjaro is contraindicated for people with medullary thyroid carcinoma, MEN2, severe gastrointestinal disease, pregnancy, breastfeeding, and severe allergic reactions to tirzepatide.
Not Sure About Your Eligibility?
Our pharmacist will assess your medical history and determine if Mounjaro is right for you
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