b12 injection hurt does Best Vitamin B12 Injection Sites What Happens If You Inject
Description
If you have a temporary deficiency or increased requirement (say, after a surgery or during recovery from an acute illness), you might only need a short course, perhaps a few weeks of injections, until your vitamin levels normalize or you can meet your needs by mouth again

Vitamin B12 induced acneiform eruption

When Both May Be Used Together In some patients, vitamin B12 and vitamin B complex may be used together

Together, they provide balanced energy support
Intrauterine growth retardation and consequences for endocrine and cardiovascular diseases in adult life: Does insulin-like growth factor-I play a role