Clinical Reference · Updated May 2026

Tirzepatide Dosing & Pharmacology

Tirzepatide is administered as a once-weekly subcutaneous injection. Half-life of approximately 5 days supports weekly dosing. Steady state is reached after 4 weeks.

Dr. Parmis - Medical Researcher
Researched By
Dr. Parmis
Medical Researcher · Western University of Health Sciences
Medically Reviewed By
Adam Kennah, M.D.
Board-Certified Physician
Last clinically reviewed: April 28, 2026 · This page is informational and does not constitute medical advice.

Detail

Standard titration: 2.5 mg → 5 mg → 7.5 mg → 10 mg → 12.5 mg → 15 mg, with each step held for at least 4 weeks. Pharmacokinetics: half-life ~5 days, steady state ~4 weeks, oral bioavailability nil (peptide). Subcutaneous administration: abdomen, thigh, upper arm — rotated weekly. Renal: no dose adjustment required for renal impairment.

Sources

This page references peer-reviewed publications listed on PubMed and FDA prescribing information labels. Methodology for source selection is documented on the Methodology page.

Disclaimer: This page is informational and does not constitute medical advice. Decisions about tirzepatide should be made in consultation with a licensed healthcare provider.
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