Allergies Do not take vitamin B12 supplements if you are allergic to this vitamin, cobalamin, or cobalt
If palpitations persist, your doctor may review all your medications to rule out interactions or side effects
Risks and Side Effects Potential Side Effects While vitamin B12 injections are generally considered safe, they can cause side effects in some individuals
When adverse effects occur, they may include mild skin reactions, gastrointestinal disturbance, or headache, typically following high-dose intramuscular injections rather than oral supplementation
Take a fresh alcohol prep pad and vigorously wipe the surface of each rubber stopper
The fluid is still the same quantity and clear