10 / 13 You may get these ulcers on your gums or tongue
[131] [132] Species from the following genera and the following individual species are known to synthesize B 12 : Propionibacterium shermanii , Pseudomonas denitrificans , Streptomyces griseus , Acetobacterium , Aerobacter , Agrobacterium , Alcaligenes , Azotobacter , Bacillus , Clostridium , Corynebacterium , Flavobacterium , Lactobacillus , Micromonospora , Mycobacterium , Nocardia , Proteus , Rhizobium , Salmonella , Serratia , Streptococcus and Xanthomonas
Cyanocobalamin (b12) injection 2,000 mcg / mL Multiple dose for intravenous, intramuscular or subcutaneous use
Practical rules derived from this chemistry: Store lyophilized powder at or below 4 degrees Celsius, away from light