getting a b12 injection How Often Can I Take Injections? B12 Injections - East Valley
Description
The time it takes for vitamin B12 to become effective depends on personal characteristics, together with the selected supplementation method
Some people may require daily injections for a few weeks, while others might need them less often
Nicotinamide (niacinamide) does not cause flushing and has fewer side effects, with nausea and liver toxicity reported only at very high intakes ~3 g/day)
Human safety data is limited, so its full risk profile is not established
