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Some individuals may experience an allergic reaction or sensitivity to the ingredients in the injection.
This can cause a number of different health conditions, including general physical symptoms and even all the way to neurological symptoms if you are really deficient in the vitamin for too long Some of the main symptoms of this B12 deficiency include: General symptoms: Having yellowish skin Feeling like the tongue or mouth is sore Weight loss Not feeling as hungry as usual Experiencing diarrhea, vomiting, or nausea Feeling weak or tired Neurological symptoms Having trouble with speaking or walking after having a deficiency for too long Having a hard time remembering things, or you can get easily confused
Repletion plan (scheduled): low B12 or recurring fatigue set a cadence (weekly/bi-weekly/monthly) and adjust based on how you feel and any labs
The relationship between reduced glutathione level and glutathione S-transferase [PMID: 1297006] Laboratory literature summary: The relationship between reduced glutathione level and glutathione S-transferase activity in sheep erythrocytes
Pralatrexate: 1 (milligram) mg of vitamin B12 as an injection no more than 10 weeks prior to the first dose and every 8 to 100 weeks thereafter
