If the vial seems pressurized in the other direction (pushing the plunger back when you insert the needle), you may have injected too much air during reconstitution
Other Uses Compounded methylcobalamin injections and other forms of vitamin B12 injections like hydroxocobalamin and cyanocobalamin may also be prescribed for those with pernicious anemia, diabetes, neuropathy, heart disease, circadian rhythm sleep disorders, memory loss, depression, fatigue, AIDS, inflammatory bowel disease (IBD), Lyme disease, osteoporosis, tendonitis, psychiatric disorders, Alzheimers disease, liver and kidney disease, and asthma
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Suppliers who value customer relationships typically provide better support and are more responsive to questions or concerns
Bjartell 1990