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Use of essential oils to increase bioavailability of oral pharmaceutical compounds

  • US 5,665,386 A
  • Filed: 06/07/1995
  • Issued: 09/09/1997
  • Est. Priority Date: 06/07/1995
  • Status: Expired due to Term
First Claim
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1. A method for increasing bioavailability of an orally administered hydrophobic pharmaceutical compound, which comprises:

  • orally administering said pharmaceutical compound to a mammal in need of treatment with said pharmaceutical compound concurrently with an essential oil or a component of an essential oil in an amount of said essential oil or essential oil component sufficient to provide bioavailability of said pharmaceutical compound in the presence of said essential oil or essential oil component greater than bioavailability of said pharmaceutical compound in the absence of said essential oil or essential oil component, and sufficient to provide a concentration of said essential oil or essential oil component in the gut of said mammal equal to or greater than a concentration of said essential oil or essential oil component that reduces conversion of cyclosporine to hydxoxylated products by 10%, compared to controls, in an assay system containing 250 μ

    g rat liver microsomes, 1 μ

    M cyclosporine, and 1 mM reduced nicotinamide adenine dinucleotide phoshate (NADPH) in 1 ml of 0.1M sodium phosphate buffer, pH 7.4.

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