what is the normal dose for b12 injections Shots at Home: How, Where & How Often to Inject Yourself Vitamin B12 Injection: Uses, Benefits,

Before booking a B12 injection this spring, get your levels tested

While oral bioavailability is lower than subcutaneous administration, these studies established that even high oral doses maintained excellent safety profiles, though higher doses (54 mg) were associated with increased gastrointestinal discomfort

The one primary-source injectable number comes from a 1990s ProCyte hair-growth patent, which describes intradermal formulations of the AHK-Cu class at 100500 micrograms per 0.1 mL in saline or sterile water [4] but that is an animal / formulation specification, not a human dose

Anyone experiencing symptoms of deficiency particularly neurological symptoms should seek medical review promptly rather than relying solely on self-supplementation