The effects generally last between 1 and 4 weeks, depending on your bodys metabolism, B12 usage, and the severity of the deficiency
18(2):185 Multifunctionality and possible medical application of the BPC 157 peptide: literature and patent review Seiwerth S, Rucman R, Turkovic B, et al., Current Pharmaceutical Design , 2018
Patients sometimes ask whether a 5th injection would extend the benefit
Alternatives to B12 Vitamin Shots and Dietary Supplements Several alternatives exist for those who prefer not to take injections to maintain adequate Vitamin B12 levels
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The blood test is usually called a complete blood count (CBC)