<unk>  is a vitamin B combination that is FDA approved for the treatment of cobalamin deficiency, malabsorption of<unk>  and pernicious anemia, prophylaxis cobalamin deficiency, and diagnosis for Schilling test.   Common adverse reactions include injection site pain, arthralgia, dizziness, headache, and nasopharyngitis.
Cyanocobalamin
Hydroxocobalamin
Sodium aurothiomalate
Aluminium nicotinate
Acetylcysteine 
Sodium selenate
Thiocarboxime
Furathiocarb