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If you're on FDA-approved tirzepatide (Mounjaro or Zepbound) and taking a regular doctor-approved B12 supplement by mouth, you're in the clear, Duah says

Whether youre managing diabetes or pursuing weight loss, patients typically start noticing significant improvements after a few weeks or months of treatment

Neuropsychiatric symptoms from vitamin B12 deficiency generally improve gradually with treatment, with noticeable changes beginning around 3 months after initiation and continuing for up to a year

If you use sterile water, you should draw all doses into individual syringes immediately after reconstitution and store them separately

Its about keeping it off, for good