mic b12 injections subcutaneous or intramuscular Choosing the Right Needle and Syringe for Injections: A Complete Guide B12 vitamin Store Intramuscular vs

I was drinking a lot more water overall, which might be a confounding factor

Because it is a small molecule, it is studied orally/sublingually in the literature

[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

To put this simply, it wears off - it does not last

Safety is one of the most common concerns