vitamin b12 injection overdose Should we be concerned about getting too much B12? Vitamin B12: Symptoms, Dosage &
Description
Many patients may report an increase in energy and a decrease in fatigue after starting B-complex injections, usually within days to a couple of weeks of regular treatment

The medication should be protected from excessive heat and humidity, which can accelerate degradation and potentially support microbial growth

A., & Mbah, J
How Does 5-Amino-1MQ Compare to Other Metabolic Research Compounds

Eur J Pharmacol

I am NOT advising you to follow my possibly questionable practice, but, when I knew we were going through Brexit I took note of the expiry dates of ampoules that were being issued at the time and chose to buy enough ampoules to last me for a year beyond their expiry date - working on the principle it might take a couple of years for the supply chain to work itself out and I didn't want to run out