does b12 have to be injected intramuscular Super-B12 Complex Inj Best Vitamin B12 Injection Sites:

However, if it improves your adherence and tolerability, the theoretical pharmacokinetic disadvantage may not matter practically

It is common for an intramuscular injection of vitamin C to sting during an injection, and afterward have redness, swelling and soreness at the injection site

Vitamin B12 is primarily found in animal-based foods, such as meat, poultry, fish, eggs, and dairy products

Someone in a coma may require thiamin injections

The most common clinical signs associated with GI diseases are some combination of vomiting, diarrhea, and weight loss

Conclusion While vitamin B12 is essential for health, it is important to be aware of the potential symptoms of overdose