Common effects usually mild and often worst during titration include nausea, vomiting, diarrhea, constipation, abdominal pain, upset stomach, headache, and fatigue
The 12-week schedule keeps that dose constant while frequency falls: daily in weeks 14, five times weekly in weeks 58, and two or three times weekly in weeks 912
Professional guidance is key
The most common one is cyanocobalamin
Addressing these questions can help you develop a comprehensive plan that complements the effects of vitamin injections and supports your overall well-being
[1] Those who cannot digest or absorb B12 as a result of inherited genetics or damage to the stomach and small intestine require more than can be absorbed from sublingual supplementation