im b12 injection dose VITAMIN 3000 mcg B12 Shots Dosage for Adults:

Vitamin B12 supplements can help treat or prevent a vitamin B12 deficiency, which can be serious and Not everyone needs to take a vitamin B12 supplement, as However, healthcare professionals may recommend vitamin B12 supplements for certain populations, including: people following a vegan diet older adults people who have had gastrointestinal surgery people who have nutrient absorption issues people with dietary restrictions People taking certain long-term medications, such as metformin and proton pump inhibitors, may also benefit from a supplement, as these medications can affect absorption of vitamin B12

& Raslan, A

Drugs 65 , 13911418 (2005)

How B12 Injections Work B12 injections combat deficiency by delivering the vitamin directly into the bloodstream

Genome Biol (2014) 15(12):550