Adequate levels support normal energy metabolism, which may help reduce fatigue related to deficiency
The study was a randomized study of enclomiphene citrate in 44 men with secondary hypogonadism for 6 weeks
Pernicious anemia is associated with an increased incidence of carcinoma of the stomach, but this is believed to be related to the underlying pathology and not to treatment with cyanocobalamin
If youve had weight loss surgery or have any GI condition affecting nutrient absorption, B12 status deserves attention
National Library of Medicine: "B Vitamins" Mayo Clinic: "Biotin (Oral Route)" FDA: FDA 101: Dietary Supplements Mayo Clinic: "Anaphylaxis" Mayo Clinic: "Niacin" Mayo Clinic: "Allergies" Vitamin B12 - "Health Professional Fact Sheet" National Institutes of Health: "Vitamin B12 - Health Professional Fact Sheet" Journal of Allergy and Clinical Immunology: Vitamin B12 Hypersensitivity: A Retrospective Multicenter Study Justin Laube, MD Medical Reviewer Justin Laube, MD, is a dual board-certified integrative and internal medicine physician, retreat leader, and healing educator with over 15 years of experience caring for patients w
For subcutaneous injection, doses of 250-500 mcg per day are commonly used