Legal status by country
Is Tirzepatide with B12 legal?
Written by Aaron CuhaReviewed Sep 2026
How Tirzepatide with B12 is classified in the United States, United Kingdom, Australia and Canada, side by side. Each country has its own page with a direct answer, the regulator's approval status and what the classification means in practice.
All four countries, side by side
| Attribute | United States · FDA | United Kingdom · MHRA | Australia · TGA | Canada · Health Canada |
|---|---|---|---|---|
| Status | Not approved | Not approved | Not approved | Not approved |
| Classification | Not approved; research use only | Not licensed | Not approved | Not approved |
| Note | Compounded on prescription. Tirzepatide itself is approved; the fixed combination with B12 is not, and is not reviewed by FDA. | Tirzepatide is licensed; a compounded tirzepatide plus B12 mixture is not. | Tirzepatide is registered; compounded GLP-1 combinations were restricted by the TGA. | Tirzepatide is approved; the combination is not. |
US FDA status: Not an approved product. Compounded preparations are not FDA approved and are not reviewed for safety, effectiveness or quality. FDA has published standing concerns about unapproved GLP-1 products sold for weight loss.. Reviewed Sep 2026.
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General information current as of Sep 2026, not legal advice. Classifications change; confirm with the regulator or a lawyer for a specific situation. Educational use only. This database summarizes published research. It is not medical advice and contains no dosing protocols or recommendations for personal use. The Longevity Archive has no vendor relationships.