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Peptide Spencer

Incretin & metabolic

Tirzepatide

  • 10 mg
  • 15 mg
  • 20 mg
  • 30 mg
  • 40 mg
  • 50 mg
  • 60 mg
  • 90 mg
  • 120 mg
  • 180 mg

Custom strengths on request

FDA-approved as Zepbound and Mounjaro. Compounded tirzepatide is not FDA-approved. Source, Aug 28, 2026

At a glance

These dosages are a helpful guide, not a prescription. Every clinician is expected to do their own due diligence before prescribing.

  1. Start

    2.5 mg subcutaneously once weekly for 4 weeks

    Approved label
  2. Typical

    5 mg, 10 mg, or 15 mg once weekly (Zepbound weight); OSA 10 mg or 15 mg

    Approved label
  3. Ceiling

    15 mg once weekly in adults; 10 mg once weekly in pediatric patients (Mounjaro)

    Approved label
Frequency
once weekly
Route
subcutaneous injection
Course
5 mg after 4 weeks; 2.5 mg steps after at least 4 weeks on current dose
Boxed warning for thyroid C-cell tumors (contraindicated with MTC or MEN 2 history); compounded mg/mL varies, so confirm concentration before converting to volume.

Full dosing guide

Get a quote

Custom strengths on request. Prices are quoted per clinic.