had b12 injection but still tired i have injections Feeling tired all the time but can't figure B12 Injection – When Is
Description
Select and sanitize the injection site - upper thigh, abdomen, or upper arm for intramuscular, or belly fat for subcutaneous

If youre looking for the same B vitamins in tablet form, see Neurobion B1 B6 B12 tablets, our Methycobal B12 500 mcg tablets, or our multivitamin range

A pharmacokinetic study in rats found that oral administration produced substantial plasma concentrations, with a maximum concentration of 2252 ng/mL and an elimination half-life of approximately 6.9 hours
Smits RM, Veldhuijzen DS, Wulffraat NM, Evers AWM
