药物信息为OXYCONTIN (OXYCODONE HCl CONTROLLED-RELEASE) TABLETS CII10 mg 15 mg 20 mg 30 mg 40 mg 60 mg* 80 mg* 160 mg* (Purdue Pharma LP): Absorption

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  • About 60% to 87% of an oral dose of oxycodone reaches the central compartment in comparison to a parenteral dose. This high oral bioavailability is due to low pre-systemic and/or first-pass metabolism. In normal volunteers, the t½ of absorption is 0.4 hours for immediate-release oral oxycodone. In contrast, OxyContin Tablets exhibit a biphasic absorption pattern with two apparent absorption half-lives of 0.6 and 6.9 hours, which describes the initial release of oxycodone from the tablet followed by a prolonged release.

  • Drug Information Provided by National Library of Medicine (NLM).
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