159 results about "Opioid Agonist" patented technology

The invention relates in part to a method of reducing the abuse potential of an oral dosage form of an opioid analgesic, wherein an analgesically effective amount of an orally active opioid agonist is combined with an opioid antagonist into an oral dosage form which would require at least a two-step extraction process to be separated from the opioid agonist, the amount of opioid antagonist including being sufficient to counteract opioid effects if extracted together with the opioid agonist and administered parenterally.

The invention is directed in part to oral dosage forms comprising a combination of an orally analgesically effective amount of an opioid agonist and an orally active opioid antagonist, the opioid antagonist being included in a ratio to the opioid agonist to provide a combination product which is analgesically effective when the combination is administered orally, but which is aversive in a physically dependent subject. Preferably, the amount of opioid antagonist included in the combination product provides at least a mildly negative, "aversive" experience in physically dependent addicts (e.g., precipitated abstinence syndrome).

Disclosed in certain embodiments is an oral dosage form comprising: a therapeutically effective amount of an opioid analgesic; an opioid antagonist; and an irritant in an effective amount to impart an irritating sensation to an abuser upon administration of the dosage form after tampering.

Disclosed in certain embodiments is an oral dosage form comprising a therapeutically effective amount of an opioid analgesic, an opioid antagonist and one or more pharmaceutically acceptable excipients; the dosage form further including a gelling agent in an effective amount to impart a viscosity unsuitable for administration selected from the group consisting of parenteral and nasal administration to a solubilized mixture formed when the dosage form is crushed and mixed with from about 0.5 to about 10 ml of an aqueous liquid.

Controlled-release dosage forms containing an opioid agonist; an opioid antagonist; and a controlled release material release during a dosing interval an analgesic or sub-analgesic amount of the opioid agonist along with an amount of the opioid antagonist effective to attenuate a side effect of the opioid agonist. The dosage form provides analgesia for at least about 8 hours when administered to human patients. In other embodiments, the dose of antagonist released during the dosing interval enhances the analgesic potency of the opioid agonist.

Disclosed in certain embodiments is an oral dosage form comprising a therapeutically effective amount of an opioid analgesic; an opioid antagonist; and a bittering agent in an effective amount to impart a bitter taste to an abuser upon administration of the dosage form after tampering.

An analgesic composition is disclosed comprising a sub-analgesic dosage of a mu-opioid agonist, optionally in the form of a pharmaceutically acceptable salt, and a sub-analgesic dosage of a kappa2-opioid agonist, optionally in the form of a pharmaceutically acceptable salt. There is also disclosed a method for producing analgesia in humans and lower animals which comprises administering concurrently to a human or lower animal in need of such treatment an analgesic composition of the invention.

Disclosed are oral dosage forms, comprising (i) a therapeutically effective amount of an opioid agonist; (ii) an opioid antagonist in releasable form; and (iii) a sequestered opioid antagonist which is not released when the dosage form is administered intact, and methods thereof.

The present invention is in the field of oral, abuse resistant pharmaceutical compositions of opioid agonists, extended release pharmaceutical compositions of opioid agonists and extended release abuse resistant pharmaceutical compositions of opioid agonists and the use thereof. The present invention is also directed to extended release pharmaceutical compositions and the use thereof for preventing or minimizing the risk of abuse and / or toxicity from either intentional or unintentional tampering. The present invention is further directed at a method of preventing or minimizing the risk of abuse and / or toxicity from either intentional or unintentional tampering.

Disclosed is an oral dosage form comprising (i) an opioid agonist in releasable form and (ii) a sequestered opioid antagonist which is substantially not released when the dosage form is administered intact, such that the ratio of the mean Cmax of the antagonist after single dose oral administration of the dosage form after tampering to the mean Cmax of antagonist after single dose oral administration of an intact dosage form is at least 1.5:1.

A pain relief lollipop comprises a candy matrix comprising (a) an opioid agonist, (b) an N-methyl-D-aspartate receptor antagonist different from the opioid agonist, (c) gabapentin, or a pharmaceutically acceptable salt thereof, and, optionally, a muscle relaxant, sedative, anxiolytic, and / or antidepressant. A patient can self-administer small amounts of the pain relief drug as needed by simply licking or sucking on the lollipop in response to his subjective experience of pain.

This invention relates to a method of selectively enhancing the analgesic potency of morphine and other clinically used bimodally-acting opioid agonists and simultaneously attenuating development of physical dependence, tolerance and other undesirable side effects caused by the chronic administration of said bimodally-acting opioid agonists comprising the co-administration of a bimodally-acting opioid agonist which activates both inhibitory and excitatory opioid receptor-mediated functions of neurons in the nociceptive (pain) pathways of the nervous system and an opioid receptor antagonist which selectively inactivates excitatory opioid receptor-mediated side effects. This invention also relates to a method of using excitatory opioid receptor antagonists alone to block the undesirable excitatory side effects of endogenous bimodally-acting opioid agonists which may be markedly elevated during chronic pain. This invention further relates to a method of long-term treatment of previously detoxified opiate, cocaine and alcohol addicts utilizing said excitatory opioid receptor antagonists, either alone or in combination with low-dose methadone, to prevent protracted physical dependence, and to compositions comprising an excitatory opioid receptor antagonist of the invention and a bimodally-acting opioid agonist.

Disclosed in certain embodiments is an oral dosage form comprising: a therapeutically effective amount of an opioid analgesic; an opioid antagonist; and an irritant in an effective amount to impart an irritating sensation to an abuser upon administration of the dosage form after tampering.

Pharmaceutical dosage forms are provided for use in deterring abuse of opioids or other medications, which help avoid harm to a patient dependent on the medication. In one case, a pharmaceutical oral dosage form is provided that includes a plurality of microcapsules, each microcapsule of the plurality containing an opioid agonist medication in a controlled release form, and a partial opioid agonist sequestered in the pharmaceutical dosage form, such that upon oral administration of the pharmaceutical oral dosage form the partial opioid agonist will pass through the gastrointestinal tract without uptake by the body.

Methods and compositions for treating subjects with pain, including neuropathic pain, using opioid antagonists or combinations of opioid antagonists and opioid agonists, including, for example, wherein the amount of an opioid antagonist enhances the neuropathic pain-alleviating potency of an opioid agonist.

Disclosed is an oral dosage form comprising (i) an opioid agonist in releasable form and (ii) a sequestered opioid antagonist which is substantially not released when the dosage form is administered intact, such that the ratio of the amount of antagonist released from said dosage form after tampering to the amount of said antagonist released from said intact dosage form is about 4:1 or greater, based on the in-vitro dissolution at 1 hour of said dosage form in 900 ml of Simulated Gastric Fluid using a USP Type II (paddle) apparatus at 75 rpm at 37 degrees C. wherein said agonist and antagonist are interdispersed and are not isolated from each other in two distinct layers.

Methods and materials, including novel compositions, dosage forms and methods of administration, useful for treating arthritic conditions, inflammation associated with a chronic condition, and / or chronic pain, including pain from arthritis and inflammation, using opioid antagonists, including combinations of opioid antagonists and opioid agonists. Methods and materials comprising opioid antagonists or combinations opioid antagonists and agonists may optionally include one or more additional therapeutic agents.

The present invention provides abuse-resistant transdermal delivery devices containing an opioid agonist intended for analgesic purposes in pain patients.

Methods and compositions to induce opioid drug independence in opioid drug dependent individuals comprising administering opioid agonists and / or antagonists encapsulated in biodegradable polymer microspheres in a dosage formulation.

Disclosed in certain embodiments is an oral dosage form comprising a therapeutically effective amount of an opioid analgesic, an opioid antagonist and one or more pharmaceutically acceptable excipients; the dosage form further including a gelling agent in an effective amount to impart a viscosity unsuitable for administration selected from the group consisting of parenteral and nasal administration to a solubilized mixture formed when the dosage form is crushed and mixed with from about 0.5 to about 10 ml of an aqueous liquid.

The present invention provides a dosage form, particularly a tamper resistant dosage form, comprising; non-stretched melt extruded particulates comprising a drug selected from an opioid agonist, a tranquilizer, a CNS depressant, a CNS stimulant or a sedative hypnotic; and a matrix; wherein said melt extruded particulates are present as a discontinuous phase in said matrix.

Disclosed are oral dosage forms, comprising (i) a therapeutically effective amount of an opioid agonist; (ii) an opioid antagonist in releasable form; and (iii) a sequestered opioid antagonist which is not released when the dosage form is administered intact, and methods thereof.

The present invention provides a composition comprising an opioid agonist, and a polymer-antagonist conjugate. The polymer-antagonist conjugate preferably does not hydrolyze upon administration to a patient, and does not bind to the opioid receptors. The covalent bond between the polymer and the antagonist in the conjugate is broken over a defined period of time to release the antagonist into the formulation. The released antagonist attenuates the liking of the agonist, thereby eliminating the incentive to the diversion of the medicines.