Solid dispersions of opioid antagonists

Drug – bio-affecting and body treating compositions – Solid synthetic organic polymer as designated organic active... – Aftertreated polymer

Reexamination Certificate

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C424S423000, C525S438000

Reexamination Certificate

active

07914776

ABSTRACT:
Solid dispersions of stable, amorphous opioid antagonists, particularly [[2(S)-[[4(R)-(3-hydroxyphenyl)-3(R),4-dimethyl-piperidinyl]methyl]-1-oxo-3-phenylpropyl]amino]acetic acid, with improved water solubility and bioavailability are disclosed. Also disclosed are methods of preventing or treating a side effect associated with an opioid. In addition, methods of treating or preventing pain, ileus, and opioid bowel dysfunction are disclosed.

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