how to give b12 injection I perform a glute (Intramuscular Injection) Treating Severe Vitamin B12 Deficiency

Ive been on this since March & its now July & I have lost 22lbs You guys are great but this seems to sting for a while at injection site for a half hour or so and not sure if that is common

What to track: Body weight (morning, fasted, same scale), waist measurement, and clothing fit

Moderate alcohol consumption is generally acceptable

Injections administer the vitamin directly into the bloodstream, bypassing the digestive system, ensuring better absorption and quicker weight loss benefits

It is necessary for the growth and replication of all body cells and the nervous system's functioning, and deficiency causes pernicious anemia and other forms of megaloblastic anemia and neurologic lesions

I do not know what the method for determining the shelf life of it is and do not know what tests it undergoes