b12 injections given subcutaneously Mic Subcutaneous Or Intramuscular Can mic B12 be injected subcutaneously? Compounded Cyanocobalamin (Vitamin B12) Injection

Seek emergency help for trouble breathing, facial or throat swelling, severe rash, chest tightness, or fainting after an injection

The standard prescription starts with an initial intramuscular dose

Route/evidence mismatch: the pivotal mouse study tested subcutaneous injection at a fixed research dose (20 mg/kg, three times daily) the oral capsule use that is actually sold and discussed commercially has not itself been directly tested in that published research

The full range reported is 50 to 150 mg per day, usually starting at 50 mg for the first 1 to 2 weeks and increasing if well tolerated

where Madonna, Katy Perry and Justin Timberlake have also admitted regularly having the vitamin boost and where injections are said to aid weight loss because they increase energy levels and boost the metabolism