There the tractor stayed, burying its tires in the soil, cleats chewing at the soft dirt, the sounds of loosening metal joints like a pigs snout snorting fiercely, biting and grunting at the earth with implacable hunger, slowly grinding deep wheel ruts into the dirt up to the axle, everything a blur to Guadalupe except his own imminent end
W., & Tanagho, E
It means we do not yet know what they do in people, at what dose, or over what time frame

It includes 1-5 intramuscular or subcutaneous injections of 1000 mcg crystalline cyanocobalamin daily, followed by oral doses of 1000-2000 mcg/day Parenteral administration should be reserved for those with significant neurological symptoms NICE guideline: Vitamin B 12 deficiency in over 16s: diagnosis and management: Malabsorption as the confirmed or suspected cause of vitamin B 12 deficiency: Offer replacement to people if: lifelong intramuscular vitamin B12 Autoimmune gastritis is the cause They have had a total gastrectomy They have had a complete terminal ileal resection If the person has a vitamin B 12 deficiency because of malabsorption that is not caused by autoimmune gastritis, or a total gastrectomy or complete terminal ileal resection (for example, malabsorption caused by coeliac disease, partial gastrectomy or some forms of bariatric surgery): Offer vitamin B 12 replacement and Consider intramuscular instead of
Sleep Medicine Reviews, 66 , 101700
Burada ama, rnn FDA onay olmad iin aratrma gelitirme laboratuvarlarnda aratrma rn ad altnda satlmasdr