Its crucial to note that certain medical conditions can also impede the absorption of this essential soluble vitamin
Vitamin B-12 can be found in many foods, including meat, fish, eggs, poultry and milk and also in your prenatal multivitamin
It's a delicate chain of 44 amino acids
Supplementing this vitamin is key to living a healthy lifestyle among deficient people
Feeling hot or cold Unusual hunger and weight gain Dry mouth Fatigue and dizziness Heart problems such as abnormal rhythms Blood pressure changes (increase or decrease) Anecdotal side effects Anxiety and loss of sleep (Taking in AM and early afternoon helped (having doses around 250-350mg))

Vitamin B12 There is four types of parenteral Vitamin B12 available: Cyanocobalamin 100 mcg/ml and 1000 mcg/ml best used as IM to prevent rapid loss via kidneys Hydroxycobalamin IM (compounded 1000 mcg/ml or more) known as long acting B12 (binds better to plasma proteins than cyanocobalamin) Methylcobalamin IV (compounded 1000 mcg or more up to 5000 mcg/ml) Adenosylcobalamin IV Common dose is 1000 mcg IM or IV Vitamin B12 as hydroxycobalamin is synthesized exclusively by microorganisms and is found in the liver of animals bound to protein as methylcobalamin = metabolically active form of Vitamin B12 Hydroxycobalamin is a chelator of cyanide and is used in cyanide poisoning Hydroxocobalamin is most generally used for vitamin B12 replacement therapy and is considered the drug of choice for vitamin B12 deficiency by the Martindale Extra Pharmacopoeia (Sweetman, 2002) and the World Health Organization (WHO) Model List of Essential Drugs