Tirzepatide and Ozempic (semaglutide) are once-weekly injectable medications used to manage type 2 diabetes and support weight loss. Both drugs are administered under the skin (subcutaneously) using a prefilled injection pen. Tirzepatide is developed by Eli Lilly, while Semaglutide (Ozempic) is developed by Novo Nordisk.
This guide walks you through how to self-inject these safely and correctly at home.
Where to Inject Tirzepatide or Ozempic
You can inject the medication into any of the following areas:
- Abdomen (at least 2 inches from the belly button)
- Thighs (front of upper legs)
- Upper arms (back of the arm, if administered by another person)
Tip: Rotate injection sites each week to avoid bruising or lumps.


Preparation Before Injecting
- Wash your hands with soap and water.
- Check the injection pen label to ensure it’s the correct medication and dose.
- Inspect the solution through the pen window:
- Should be clear and colorless
- Do not use if it’s cloudy, discolored, or has particles
- Choose a clean, dry injection site.



Step-by-Step: How to Inject Tirzepatide or Ozempic
Note: Both pens have slightly different designs but follow similar procedures.
For Both Pens:
- Attach a fresh needle and remove the cap
- Prime the pen
- Turn the dose selector to the flow check symbol
- Press the injection button until a drop appears at the needle tip



- et the dose:
- Tirzepatide: 5, 10 or 15mg
- Ozempic: 0.5mg or 1mg
Your clinic will teach you how to accurately set the dose using the injector pen
- Inject the needle into your skin at a 90-degree angle
- Press the injection button and hold:
- Tirzepatide: You’ll hear a “click”—hold the pen for 10 seconds after the click
- Ozempic: Press and hold until the dose window shows “0” and continue to hold for 10 seconds
- Remove the needle tip from your skin
- Recap the needle tip and dispose
After the Injection
- Mild redness or swelling is normal
- Store new pens in the refrigerator; do not freeze
- Pens can be kept at room temperature (up to 30 °C) for up to 30 days, but refrigeration is recommended
Injection Tips
- Always use a new needle for each injection
- Inject at the same time every week
- If you miss a dose:
- Within 4 days: Take it as soon as you remember
- After 4 days: Skip it and wait for your next scheduled dose
When to Call Your Doctor
- Signs of an allergic reaction (rash, swelling, breathing difficulty)
- Persistent nausea, vomiting, or severe stomach pain (may indicate pancreatitis)
- Injection site infection (redness, warmth, discharge)
Conclusion
Tirzepatideand Ozempic are simple, once-weekly injections that are performed at home. Always follow proper technique to reduce side effects and ensure medication effectiveness. Ask your healthcare provider for a demonstration if you’re unsure how to inject.