- High-dose oral B12 treatment Instead of taking the injection route, a provider may prescribe a high-dose B12 oral treatmenta pill, capsule, or lozenge containing a higher concentration of B12 than your average over-the-counter (OTC) supplement
Vitamin B12 is naturally found only in animal products like meat, fish, eggs, and dairy, or in fortified foods and supplements, as plants do not produce it
Cycle length 8 to 12 weeks on, 4 to 6 weeks off in common research community protocols
Also no side effects at all except for feeling a tiny bit tired the first day
Post-Injection Care You may experience a mild tingling or warmth at the injection site, but side effects are rare