Source of Vitamin B12, Image Credit: marina_ua / Shutterstock Causes Vitamin B12 deficiency may arise due to: Nutritional deficiency especially in elderly individuals on restricted diets, and alcoholics Malabsorption syndromes such as pernicious anemia Gastrointestinal disorders leading to malabsorption such as atrophic gastritis or H2-receptor blocker use for prolonged periods Others such as Whipples disease or Crohns disease, intestinal surgery or strictures with resulting bacterial overgrowth that competitively take up vitamin B12 in the ileum Clinical features Hematologic Classically, vitamin B12 deficiency has been associated with megaloblastic macrocytic anemia
Safety assessment of benzyl alcohol, benzoic acid and its salts, and benzyl benzoate
5-amino-1MQ is a small, membrane-permeable molecule with a chemical formula of C10H11N2+
Cyanocobalamin is contraindicated in these individuals as the cyanide moiety may worsen optic nerve damage
The BUD is typically 28 to 60 days from the compounding date, with many pharmacies defaulting to 28 days after first puncture for multi-dose vials
This section outlines common reasons clients seek injectable Vitamin B12