h2 blockers and b12 injections What are the Signs of Deficiency Compounded Cyanocobalamin (Vitamin B12) Injection
Description
Vitamin B12 is needed daily by most adult persons, usually at least 2.4 micrograms daily

Who Can Benefit

Months 6 to 12: It can take up to a year to recover from long-term B12 deficiencies

They are often prescribed for individuals who are unable to absorb the vitamin effectively through oral supplements

So, there is no one-size-fits-all answer