b12 injection adverse effects Vitamin Injections: Benefits for Your Health Vitamin B12 Side Effects: Risks

Deficiency is common in those with fatigue, brain fog, or nutrient absorption issues, especially individuals with gastrointestinal conditions, vegans and vegetarians, or those taking medications like metformin or proton-pump inhibitors

They work differently, so "better" depends on what you're trying to address

They promote easy and precise insertion during blood tests, enhancing patient comfort

It is administered intramuscularly (IM) or subcutaneously (SC) by a healthcare provider

1 The exportin-1 inhibitor selinexor was evaluated in the phase 3 BOSTON study of selinexor, bortezomib, and dexamethasone therapy administered once weekly versus twice weekly doublet therapy with bortezomib and dexamethasone