what happens if b12 is injected wrong you inject side effects of a b12 injection What Happens If You Inject B12 Wrong: 6 Red Flags Oral Vitamin B12 Side Effects

A good starting dose would be 500mcg (0.5mg) per day, but you can give up to twice as much

The use of post-cycle therapy is associated with reduced withdrawal symptoms from anabolic-androgenic steroid use: a survey of 470 men

If a day is missed, the research-sensible response is simply to resume the next scheduled dose, not to double up, because there is no acute deficit to make good and doubling only departs from the documented figure

For individuals with low vitamin B12 levels or difficulty absorbing nutrients through diet alone, this method can be especially beneficial

Both reasons are valid but the approach, expectations, and oversight should differ accordingly