can b12 injection be given subcutaneous Optimal Sites for Maximum Absorption and Benefits Best Vitamin B12 Injection Site:

Description

Individuals with certain health conditions, such as Lebers disease (a rare inherited eye disease), should avoid B12 supplements as it can worsen the condition

Which of course lead me to wonder, but how does anyone know what the good stuff is

Shoulder - make a downward-facing triangle over the deltoid muscle on the upper arm with the thumb and forefinger of the non-injection hand

Patients should avoid ingesting large amounts of vitamin C within 1 hour of oral vitamin B12 administration Extended release potassium products Antibiotics such as gentamicin, neomycin, tobramycin Anti-seizure medications such as phenobarbital, phenytoin, primidone Medicines used to treat heartburn like H2 blockers such as cimetidine and proton pump inhibitors such as omeprazole Antacids such as ranitidine, cimetidine Vitamin B12 Injection Storage and Safety Information Vitamin B12 tablets should be in a cool and dry place