Without barriers such as digestion, the body absorbs 15-97% of the injected B12, making injections much more efficient at raising blood levels quickly even if the pill dose is higher
Side effects are common but usually manageable
Optimal Dosing & Administration (2025 Protocols) General Recovery: 250350 mcg subcutaneous (near injury site) once daily for 46 weeks
In addition to sleep function, the peptide has been documented to affect neurotransmitter levels in the brain, hormonal levels, psychological performance, and the activity of pharmacological drugs [4, 6, 7, 9]
Probenecid is not effective if a patient has kidney dysfunction [creatinine greater than 2.0 (creatinine is a measure of a waste product excreted by the kidney)