MM was supported by the Associazione Italiana per la Ricerca sul Cancro (AIRC, IG 16719)
Anaphylactic reactions, which are severe allergic reactions that require immediate medical attention and can be life-threatening, with symptoms including chest tightness, itching, rash, trouble swallowing, swelling of the hands, face, or mouth, and trouble breathing
Typical oral protocols use 0.5 mg to 1 mg daily, often split into two doses taken morning and evening
Forms of B12 supplements available include: Cyanocobalamin : The most common and cost-effective form in over-the-counter supplements Methylcobalamin : A naturally occurring form, often marketed as superior though evidence for clinical advantage is limited Hydroxocobalamin : The preferred form for intramuscular injection in the UK, used therapeutically for pernicious anaemia and confirmed deficiency [4] Dosing considerations depend on the indication