can pharmacies do b12 injections Compounded Hydroxocobalamin (Vitamin B12) Injection Pharmacists Can Administer B12 Injections
Description
Comparison Table The Science Behind Vitamin B12 Vitamin B12, also known as cobalamin, is a water-soluble vitamin that plays a key role in keeping your body running smoothly
A hemocytometer was used to manually count the cells to determine the concentration of the suspension

And your of the Carbamazipone now and your haemocrit is still very low...so not safe to assume that it's due to having taken the drug...may be an ongoing problems...and most likley is due to your absorption problems (the IBS)
M.PanS.et al (2019)

While this may sound like a hassle compared to taking a daily pill, the effects of a single injection can last much longer depending on individual needs
