Once symptoms start improving, your B12 levels will be monitored accordingly to see how many shots you need to continue getting the right amount of the vitamin. Self-Injection Self-injections of ...

Vitamin B12 injections can contain cobalt, which can also cause an allergic reaction. Don’t take vitamin B12 supplements if you have sensitivities or allergies to vitamin B12, cobalt ...

Vitamin B12 is a great example of an often ignored but essential nutrient. Also known as cobalamin, vitamin B12 helps your ...