how long should i take b12 injections Do You Need a Prescription for Injections? How Often Should You Get

When to seek medical help See a doctor promptly if you have spreading redness or warmth around the site, discharge or a fever, numbness or weakness that does not settle, or any swelling of the face, lips or throat or difficulty breathing, which can signal a rare allergic reaction and is a medical emergency

Side effects, cautions and when to get help The pharmacist will explain the medicine being used, expected effects and medicine-specific side effects before treatment

Once injected, B12 enters the bloodstream directly without requiring stomach acid, intrinsic factor (a protein necessary for B12 absorption), or healthy intestinal function

Long-Term Protocols: The most clinically relevant studies evaluated subcutaneous doses of 0.25 mg (250 mcg), 0.5 mg (500 mcg), and 1 mg (1,000 mcg) administered daily for 24 weeks

active ulcer, serious liver disease, hypotension, or gout)