Products marketed as tanning nasal sprays often claim to mimic signals involved in this biological process
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
After that initial period, it is common to continue injections monthly, though less frequent intervals might be OK if cobalamin blood levels are supportive
Oral supplements may appear cheaper per unit but require significantly higher doses, which can offset the initial cost advantage
Author Yusra Serdaroglu Aydin, MSc RD Head of Nutrition and Registered Dietitian Yusra is a registered dietitian with a multidisciplinary background in nutrition, food engineering, and culinary arts
Ann Intern Med 139 , 683693, doi:10.7326/0003-4819-139-8-200310210-00012 (2003)