giving b12 injection in arm Instructions for How to Inject b12 in

Obesity drug pipeline: developing therapies for a complex disease

Some medications can reduce the ability to absorb vitamin b12, such as proton pump inhibitors, and PPIs

The increase in circulating cobalamin levels is predominantly caused by enhanced production of haptocorrin.Several liver diseases like acute hepatitis, cirrhosis, hepatocellular carcinoma and metastatic liver disease can also be accompanied by an increase in circulating cobalamin

Throw away any unused medication after the expiration date

Baltaci, D., Kutlucan, A., Turker, Y., Yilmaz, A., Karacam, S., & Deler, H

Thaw one at a time, use it, and discard