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Current regulator label
A plain-English reference on tirzepatide — what it is, its FDA-approved prescription status, how it is administered (once-weekly, subcutaneous), and key safety considerations. For dose-to-units math, use the tirzepatide dosage calculator.
Tirzepatide dosage calculator →
Arithmetic only, not medical advice.
Tirzepatide: reference record
| Regulatory status | FDA-approved prescription for labeled indications |
|---|---|
| Route | Subcutaneous |
| Dosing frequency | Once weekly |
| Published range | 2.5–15 mg |
| Evidence basis | Current regulator label |
| Common vial sizes | 10, 15, 30 |
Sources
- FDA prescribing information (Tirzepatide) - accessdata.fda.govBasis for the regulatory status, route, frequency and published range in the table above. Source last checked 2026-06-24
What is Tirzepatide?
Tirzepatide is a synthetic peptide that activates both the GIP and GLP-1 receptors. It is the active ingredient in prescription products marketed for type 2 diabetes and for chronic weight management, and it is supplied by the manufacturer as a ready-to-use solution rather than as a powder you mix.
Is Tirzepatide FDA-approved?
Yes. Tirzepatide is an FDA-approved prescription medicine for its labeled indications, and the figures on this page come from the current FDA label. Approval covers specific licensed products; it does not extend to compounded or research-grade material sold under the same ingredient name.
How is Tirzepatide given?
Subcutaneously, once weekly, according to the product label. Commercial pens and vials arrive pre-mixed at a stated concentration, so no reconstitution is involved for the licensed product.
What are the known safety concerns with Tirzepatide?
It is prescription-only. Indication, contraindications, drug interactions and monitoring all sit with the prescriber and are outside the scope of an arithmetic tool. This page does not describe who should take it or at what amount.
Start 2.5 mg weekly; labeled maintenance 5, 10, or 15 mg weekly; max 15 mg
Commercial Zepbound is supplied pre-mixed in fixed-dose pens/vials. Use actual product concentration; do not invent a reconstitution.
Prescription-only; indication, titration, contraindications, interactions and monitoring are outside this calculator.
Supply-chain quality · Finnrick
Avg quality score
7
/10
Purity range
98.81
–
99.95
%
Qty divergence
±
49
%
Vendors · samples
176
·
2,188
Common vial sizes
10, 15, 30
mg
Test window
Dec 2024 - Jun 2026
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