In all cases, the injection form selected must reflect both the individuals physiology and the clinical objectivenot just convenience
For vitamin B12 to be absorbed from the gut, it must bind to a protein called intrinsic factor, which limits how much B12 the gut can take in at one time
This brand is well tested by the pharma experts and approved by the DCGI
Its possible that insufficient vitamin B12 intake can depower your muscles capabilities
Then theres other evidence such as where tablets have been introduced to treat patients with Pernicious Anaemia doctors still keep on prescribing the injections and anyway, patients are easily able to purchase injectable B12 from other sources and treat themselves
Your body doesnt make B12 on its own, you get it from animal products (meat, fish, eggs, dairy) or supplementation