In addition to fatigue, a deficiency of B12 can lead to other symptoms like pale skin, headaches, depression, gastrointestinal problems, difficulty concentrating, decreased mental function, mouth and tongue pain or inflammation, and paresthesia in your hands and feet
The injections most often contain vitamin B12, which is considered very safe even in large quantities
COAs include HPLC purity analysis performed by an independent third-party laboratory.
Before you talk with your doctor or pharmacist about switching, there are things you should know about generic drugs
Importance of purity evaluation and the potential of quantitative 1H NMR as a purity assay: Miniperspective
On the next draw, air rushes back through the needle tract in the stopper