Verify the prescription, dose, route, and expiration date
Wash your hands thoroughly
Gather supplies: B12 vial/ampule, syringe, needle, alcohol swabs, gauze, sharps container
Check the medication for discoloration or particles
Draw up the prescribed dose using sterile technique
Choose the injection site: upper outer arm, thigh, or buttock as directed
Clean the injection site with an alcohol swab and let it dry
Insert the needle at the correct angle for the prescribed route
Inject the medication slowly and steadily
Remove the needle and apply gentle pressure with gauze
Dispose of the needle and syringe immediately in a sharps container
Wash your hands again
Monitor for pain, swelling, bleeding, rash, dizziness, or breathing trouble
Seek medical help if severe or unusual symptoms occur
Follow all instructions from a licensed healthcare professional before giving any injection