To inject simethicone, you need to go through five steps: checking the injection device, removing air, selecting the dose, injecting the drug, and removing the needle, and it is recommended that you inject the drug under your doctor’s supervision. 1. Checking the injection device: Check the name of the drug and the color label before administration to ensure that the correct drug, dose, and solution are clear and colorless. Use a new needle for each dose. Remove the needle protection tab, attach the needle to the injection pen, and remove the needle cap. 2. Remove air: Turn the dose selection button so that the pointer is aligned with the airflow check mark, push the needle upward against the injection push button until the dose display returns to the “0” position and a droplet of medication appears at the tip of the needle. 3. Select the dose: Adjust the dose selection knob and select the dose to be injected in the display window. 4. Injecting medication: Insert the needle into the skin, press the button down continuously to bring the dose indicator to 0, and leave it for 6 seconds to allow the medication to enter the body completely. 5. Remove the needle: Insert the tip of the needle carefully into the cap of the needle cap and unscrew the needle for safe handling, close the cap to complete the injection. Simeglutide should be used under the supervision of a doctor, if you are not sure how to inject, ask your doctor for help.