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"Gastric Antral Vascular Ectasia (GAVE) Syndrome" (PDF)

The first-line test is serum vitamin B12 measurement , with levels below 148 pmol/L generally considered deficient, though the exact threshold varies between laboratories

If you plan to discontinue tirzepatide, consider a gradual dose reduction over 8-12 weeks

A year's supply of high-quality B12 pills might cost $10-30, while monthly injections could run $240-600 annually out of pocket
