How to use somatropin injection pens. Using somatropin injection pens, like Genotropin, Norditropin, Saizen, or Omnitrope, requires proper technique to ensure the right dose is administered safely and effectively. Here’s a step-by-step guide on using somatropin injection pens:

How to use somatropin injection pens

1. Preparation

• Wash Your Hands: Start by washing your hands to maintain cleanliness.
• Inspect the Pen: Check that the pen is the correct brand and dose prescribed by your doctor, and make sure it’s not expired.
• Ensure Correct Storage: Somatropin pens are often refrigerated. Take it out and allow it to warm slightly if stored in the fridge (room temperature helps reduce injection discomfort).

2. Assemble the Pen

• Insert the Cartridge (if required): Some pens, like Genotropin, require loading a cartridge with the medication. Follow the instructions in the pen’s manual.
• Attach a New Needle: Screw a new, sterile needle onto the pen. Remove the outer cap and keep it nearby for needle disposal later. Also, remove the inner cap to expose the needle.

3. Prime the Pen (Remove Air Bubbles)

• Set a Small Dose: For first-time use, set a very small dose, usually about 0.2 mg, to prime the pen.
• Point the Needle Upward: Hold the pen with the needle pointing up and tap it gently to help any air bubbles rise.
• Press the Dose Button: Press the button to release any air. You should see a tiny drop of liquid at the needle tip. Repeat this if necessary until a drop appears.

4. Set the Dose

• Turn the Dosage Knob: Adjust the dosage knob to the prescribed dose. Somatropin pens have a digital or manual dosage indicator; confirm the displayed dose matches your prescription.

5. Choose and Prepare an Injection Site

• Preferred Sites: The abdomen, thigh, or upper arm are common sites. Rotate sites with each injection to prevent tissue irritation or fat loss.
• Clean the Area: Use an alcohol swab to clean the injection site and allow it to dry.

6. Administer the Injection

• Insert the Needle: Pinch the skin at the injection site and insert the needle at a 90-degree angle.
• Inject the Dose: Press the injection button to release the medication. Hold the button down until the entire dose is delivered (usually a few seconds).
• Wait and Remove: After the dose is delivered, keep the needle in place for a few more seconds to ensure all medication is injected. Then, carefully pull the pen away from the skin.

7. Dispose of the Needle

• Recap and Remove: Carefully reattach the outer cap onto the needle and unscrew it from the pen.
• Discard Properly: Dispose of the used needle in a designated sharps container. Never reuse needles.

8. Store the Pen Properly

• Refrigerate or Store at Room Temperature: Store the pen according to the manufacturer’s instructions—some pens need refrigeration while others can be kept at room temperature after the initial use.
• Avoid Freezing: Do not freeze somatropin pens, as this can damage the medication.

Tips for Safe Use

• Rotate Injection Sites: This prevents irritation and reduces the risk of lipoatrophy.
• Check the Solution: The somatropin solution should be clear. If it’s cloudy or contains particles, do not use it.
• Follow Up with Your Healthcare Provider: Regular check-ups can help monitor your response and adjust dosage as needed.

Each brand of somatropin pen may have slight differences in operation, so refer to the specific pen’s user manual and consult your healthcare provider if you have any questions.