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It was being asked: After considering characterization, safety, effectiveness evidence, and historical use, should this bulk substance be eligible for the 503A compounding pathway
It is most relevant during GLP-1 use or caloric deficit, when fatigue is part of the picture, or when progress stalls after a clean first month
Pregnant or breastfeeding individuals should consult their doctor first Anyone with an allergy to cobalt or B12 should avoid this treatment If you have certain medical conditions, such as Lebers disease (a rare genetic eye disorder), B12 injections may not be suitable
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Lancet 354 , 971975 (1999)
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