what for b12 injection The Shot: Every Human Needs to Know About Injectable Vitamin B12 B12 Injections for Energy: Benefits

Rare but Serious Reactions: Seek immediate medical attention for signs of a severe allergic reaction (anaphylaxis), such as hives, difficulty breathing, or swelling of the face and throat

Should I stop taking vitamin B12 if it upsets my stomach

But it also has a thousand other effects, tissue growth, insulin resistance, raising IGF-1 and the risk of acromegaly

Compounded drugs are not directly approved by the FDA in the same way as commercial drugs

References 09738086 Treiman DM, Meyers PD, Walton NY, Collins JF, Colling C, Rowan AJ, Handforth A, Faught E, Calabrese VP, Uthman BM, Ramsay RE, Mamdani MB

At 12mg, you need more than one vial per week