vitamin b12 injection training Biotin, Glutathione, & Vitamin C Intramuscular Vitamin B12 Course | B12

Preferred Injection Sites and Techniques The deltoid and gluteal muscles are often used for B12 injections

In rarer cases, vitamin B12 can cause more serious side effects such as an irregular heartbeat or heart palpitations, hives, and anaphylaxis

PMID 8719443

Lyophilized vials that have not yet been prepared should be stored in a cool, dry environment away from direct sunlight, moisture, and excessive heat

For example, people who maintain a vegetarian or vegan diet, people with absorption disorders, and those taking prescription meds like Metformin, Proton Pump Inhibitors (PPIs), and H2 blockers like Pepcid are often at greater risk

This autoimmune condition attacks the intrinsic factor, a protein your stomach makes that's required for B12 absorption