GLP-1 / Weight Management

Tirzepatide Peptide Calculator

Use the Tirzepatide peptide calculator below to determine your reconstitution and dosing. A dual GIP/GLP-1 receptor agonist used for type 2 diabetes and weight management. Acts on both incretin pathways for enhanced metabolic effects compared to GLP-1-only agonists.

Also known as: Mounjaro, Zepbound, GIP/GLP-1

Peptide Reconstitution Calculator

Use this free peptide calculator to get accurate dosing. Select a peptide or enter custom values. All calculations are performed locally in your browser.

Step 1: Select Peptide

Tirzepatide -- A dual GIP/GLP-1 receptor agonist used for type 2 diabetes and weight management. Acts on both incretin pathways for enh...Route: Subcutaneous injection | Frequency: 1x per week | Half-life: ~5 days

Step 2: Peptide Vial Strength (mg)

Step 3: Bacteriostatic Water Added (mL)

Step 4: Desired Dose

Below typical range (2.50 mg - 15 mg)

Your Results

Concentration

2.5 mg/mL

= 2500 mcg/mL

Volume to Draw

0.10 mL

Syringe Units (U-100 insulin syringe)

10.0 units

100 units = 1 mL on a standard U-100 insulin syringe

Doses Per Vial

20 doses

at 250 mcg per dose from a 5mg vial

U-100 Insulin Syringe

50u

100u

10.0 units

0.10 mL

Summary: Add 2 mL of bacteriostatic water to your 5mg vial. To get a 250 mcg dose, draw 0.10 mL (10.0 units) on a U-100 insulin syringe. This vial will provide 20 doses at this dosage.

For research purposes only. This peptide calculator is a mathematical tool and does not constitute medical advice. Always consult with a qualified healthcare professional before using any peptide.

In Stock

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Research-grade Tirzepatide, ≥ 99% purity. Order over WhatsApp -- shipping and payment confirmed before dispatch.

$129.00per 5 mg vial

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Worldwide shipping in about 14-25 business days.

Checkout is completed over WhatsApp -- add what you need, then confirm availability, shipping and payment directly with our team. Sold for laboratory and research use only.

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Tirzepatide Quick Reference

Typical Dose

2.50 mg - 15 mg

Frequency

1x per week

Route

Subcutaneous injection

Half-Life

~5 days

Common Vials

5 mg, 10 mg, 15 mg

Reconstituted Stability

Up to 28 days refrigerated

Note: Titrate slowly: start at 2.5 mg/week for 4 weeks minimum before increasing. The dual mechanism means potentially stronger GI side effects if titrated too quickly.

Tirzepatide Storage

Lyophilized: 2-8 C. Reconstituted: 2-8 C

Stability after reconstitution: Up to 28 days refrigerated. Always use bacteriostatic water for multi-use reconstitution. Label the vial with the reconstitution date and discard after the stability period. Use our peptide calculator above to determine the right amount of water to add.

Tirzepatide Frequently Asked Questions

Start at 2.5 mg/week for 4 weeks, then 5 mg for 4 weeks, 7.5 mg for 4 weeks, 10 mg for 4 weeks, 12.5 mg for 4 weeks, then 15 mg maintenance. Minimum 4 weeks at each step.

Adding 2 mL gives 5 mg/mL. For 2.5 mg, draw 0.5 mL (50 units). For 5 mg, draw 1 mL (100 units, a full insulin syringe). Consider using 1 mL for lower concentrations.

Tirzepatide targets both GIP and GLP-1 receptors (dual agonist), while semaglutide targets only GLP-1. Clinical trials showed tirzepatide produced greater weight loss on average (up to 22.5% vs 15% body weight).

At 2.5 mg/week: 4 weeks. At 5 mg/week: 2 weeks. At 10 mg/week: 1 week. Planning vial purchases around your titration schedule helps avoid waste.

Yes, but consult a healthcare provider for proper crossover dosing. Generally, you would stop semaglutide and begin tirzepatide at 2.5 mg the following week, then titrate up normally.

Nausea, diarrhea, decreased appetite, vomiting, and constipation are most common, especially during dose increases. These typically improve within 1-2 weeks at each dose level.

Tirzepatide Peptide Calculator

Peptide Reconstitution Calculator

Your Results

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Tirzepatide Quick Reference

Tirzepatide Storage

Tirzepatide Frequently Asked Questions

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