Pharmaceutical formulation of omeprazole

  • US 5,690,960 A
  • Filed: 09/27/1994
  • Issued: 11/25/1997
  • Est. Priority Date: 07/09/1993
  • Status: Expired due to Term
First Claim
Patent Images

1. A stable oral formulation comprising:

  • a core containing a magnesium salt of omeprazole said salt having more than 70% crystallinity as determined by x-ray powder diffraction;

    a subcoating layer; and

    an enteric coating layer, whereby the thickness of the enteric coating layer does not effect the release of omeprazole into solution at the pH predominantly present in the small intestine.

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