Confirm dosing accuracy relative to body weight and metabolic baseline
When neurological symptoms are present, more intensive treatment is required: 1 mg hydroxocobalamin on alternate days until no further improvement occurs, followed by maintenance therapy every two months
Each 1 mL vial contains 1000mcg of cyanocobalamin, a synthetic form of vitamin B12. It is a multiple-dose vial, meaning that it can be used for more than one injection
Recommended antihistamine options: Cetirizine (Zyrtec): 10mg once daily, non-drowsy, fast-acting (within 1 hour), most effective for injection site itch Loratadine (Claritin): 10mg once daily, non-drowsy, good for mild reactions Fexofenadine (Allegra): 180mg once daily, non-drowsy, least sedating option Diphenhydramine (Benadryl): 25 to 50mg every 6 hours, causes drowsiness but strongest anti-itch effect, best for severe reactions or nighttime use Strategic timing approach: Take a non-drowsy antihistamine 1 hour before your scheduled injection
