How to Take Tirzepatide

Tirzepatide is a once-weekly subcutaneous injection. The technique is simple — but the dosing schedule, injection technique, and storage requirements matter. Here's the complete practical guide based on FDA prescribing information.

Standard dosing schedule

• Weeks 1–4: 2.5 mg once weekly (initiation dose, not for clinical effect)
• Weeks 5–8: 5 mg once weekly
• Weeks 9–12: 7.5 mg once weekly (optional intermediate step)
• Weeks 13–16: 10 mg once weekly
• Weeks 17–20: 12.5 mg once weekly (optional intermediate step)
• Week 21 onward: 15 mg once weekly (maximum maintenance dose)

Many clinicians use slower titration when GI side effects are limiting. Some patients maintain on intermediate doses (5, 7.5, 10, 12.5 mg) long-term if response and tolerability are adequate.

Choosing your weekly injection day

Pick any day of the week and inject at approximately the same time each week. Most patients choose a day they're typically home and not traveling. Sunday evenings and Saturday mornings are popular because GI side effects, if they occur, peak roughly 24–48 hours after the dose. If you need to change your weekly injection day, ensure at least 3 days (72 hours) between doses.

Where to inject

• Abdomen: At least 2 inches away from the navel. Most absorbable; often most comfortable.
• Upper thigh: Front or outer aspect of the upper thigh.
• Upper arm: Back of the upper arm (may require a helper).

Rotate sites with each injection to avoid lipohypertrophy and skin irritation.

Injection technique (step by step)

1. Remove medication from refrigerator and let warm to room temperature for 10–15 minutes
2. Wash hands with soap and water
3. Inspect the medication — it should be clear and colorless. Do not use if cloudy or containing particles.
4. Clean the injection site with an alcohol wipe and let air-dry
5. If using a vial: draw the prescribed dose into an insulin syringe
6. Pinch a fold of skin between thumb and forefinger
7. Insert the needle at a 45–90 degree angle
8. Slowly inject the medication
9. Wait 5 seconds, then withdraw the needle
10. Apply a clean cotton ball or gauze if any bleeding occurs (do not rub)
11. Dispose of the needle in an FDA-cleared sharps container

Missed dose handling

• If the next scheduled dose is more than 3 days away: Administer the missed dose as soon as you remember, then resume the regular weekly schedule.
• If the next scheduled dose is less than 3 days away: Skip the missed dose and resume on the regular schedule. Do not take two doses to "catch up."

Storage

• Unopened, in refrigerator: 2°C to 8°C (36°F to 46°F). Good until the expiration date on the package.
• Room temperature: Up to 30°C (86°F) for up to 21 days. After 21 days at room temperature, discard.
• Do not freeze. Frozen tirzepatide loses potency and must be discarded.
• Protect from light. Keep in original packaging when not in use.
• Travel: A travel cooler with ice packs is the safest option for long trips. Hand-carry; do not check in luggage.

Managing common side effects

• Nausea: Eat smaller, more frequent meals; avoid fatty or fried foods; stay hydrated
• Constipation: Increase fiber, water, and physical activity; OTC fiber supplements
• Diarrhea: Stay hydrated; BRAT diet (bananas, rice, applesauce, toast)
• Persistent severe GI symptoms: Contact your prescribing clinician — slower titration may be needed

What requires a clinician call

Contact your prescribing clinician promptly for:

• Severe persistent abdominal pain (possible pancreatitis — emergency evaluation)
• Right upper quadrant pain after fatty meals (possible gallbladder issue)
• Severe dehydration from prolonged vomiting or diarrhea
• Severe allergic-type symptoms (rash, swelling, breathing difficulty — emergency evaluation)
• Inability to keep down food or liquids for more than 24 hours

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Frequently Asked Questions