can b12 injections be given in the stomach How to self-inject intramuscular vitamin - Overview B12 Injectable

Higher Upfront Cost: While the cost per dose might be higher than oral supplements, the less frequent dosing schedule can sometimes balance out the expense over time

C (Comparison): intramuscular administration of Vitamin B12

Vannucci, S

Headache Mild diarrhea Mild pain or redness at the injection site Nausea Serious or rare side effects Stop taking Vitamin B12 Injection and seek immediate medical attention right away if you experience any of the following: Allergic reactions, including angioedema, hives, and trouble breathing Signs of heart problems, including swelling, rapid weight gain, and shortness of breath Signs of hypokalemia, including muscle weakness, slow or irregular heartbeat Contraindications: This is not an exhaustive list of contraindications