what if i miss my b12 injection How Quickly Do Shots Work? Vitamin B12 Dosages: Your GoodRx

Allergic Reactions Though rare, some people may have an allergic reaction to the components in the B12 injection

[95] Intramuscular or intravenous injection [edit] Injection of hydroxycobalamin is often used if digestive absorption is impaired, [2] but this course of action may not be necessary with high-dose oral supplements (such as 0.51.0 mg or more), [97] [98] because with large quantities of the vitamin taken orally, even the 1% to 5% of free crystalline B 12 that is absorbed along the entire intestine by passive diffusion may be sufficient to provide a necessary amount

Over time, low levels of the vitamin may also raise your risk of experiencing mental health problems such as depression

have been told you have low levels of potassium

There's only one thing that gives me energy all day long, and it's not coffee

Shots tend to work faster than oral pills because they bypass the digestive system