121 results about "Buprenorphine" patented technology

An analgesic composition in parenteral unit dosage form or in a unit dosage form suitable for delivery via the mucosa comprising an amount of buprenorphine which is less than the clinical dose required to achieve pain relief and an amount of naloxone such that the ratio by weight of buprenorphine to naloxone is in the range of from 12.5:1 to 27.5:1, or an amount of naltrexone or nalmefene such that the ratio by weight of buprenorphine to naltrexone or nalmefene is in the range of from 12.5:1 to 22.5:1. The analgesic action of the buprenorphine is potentiated by the low dose of naloxone, naltrexone or nalmefene.

A composition comprising the tannate of an opioid. Suitable opioids include alfentanil, buprenorphine, butorphanol, carfentanil, cocaine, codeine, dezocine, diacetylmorphine, dihydrocodeine, dihydromorphine, diphenoxylate, diprenorphine, etorphine, fentanyl, heroin, hydrocodone, hydromorphone, beta-hydroxy-3-methylfentanyl, levo-alpha-acetylmethadol, levorphanol, lofentanil, meperidine, methadone, morphine, nalbuphine, nalmefene, o-methylnaltrexone, naloxone, naltrexone, oxycodone, oxymorphone, pentazocine, pethidine, propoxyphene, remifentanil, sufentanil, tilidine and tramadol. The opioid tannate may be readily prepared by reacting an opioid free base with tannic acid, either neat or in the presence of up to about 30 wt. % water, at a temperature of about 60 to about 150° C. and thereafter recovering the resultant opioid tannate. The opioid tannate may also be prepared by an alternative process that involves reacting the opioid free base with water at a temperature such that not more than about 10 wt. % of the opioid tannate will be decomposed and thereafter removing the water by freeze-drying.

The present invention relates to oral pharmaceutical dosage forms comprising buprenorphine with the dosage form releasing buprenorphine instantly upon oral, preferably sublingual, application of the dosage form. The present invention also relates to the use of such dosage forms for treating pain in a human or animal or for drug substitution therapy in drug-dependent human subjects.

The present invention is direct to a method of producing analgesia in a mammalian subject. The method includes administering to the subject an omega conopeptide, preferably ziconotide, in combination with an analgesic selected from the group consisting of morphine, bupivicaine, clonidine, hydromorphone, baclofen, fentanyil, buprenorphine, and sufentanil, or its pharmaceutically acceptable salts thereof, wherein the ω-conopeptide retains its potency and is physically and chemically compatible with the analgesic compound. A preferred route of administration is intrathecal administration, particularly continuous intrathecal infusion. The present invention is also directed to a pharmaceutical formulation comprising an omega conopeptide, preferably ziconotide, in combination with an analgesic selected from the group consisting of morphine, bupivicaine, clonidine, hydromorphone, baclofen, fentanyl, buprenorphine, and sufentanil.

A sustained release microsphere formulation with a high drug load may be formed by a continuous oil-in-water emulsion process by combining an organic dispersed phase with an aqueous continuous phase. The dispersed phase may include an encapsulating polymer, a primary solvent, such as dichloromethane, a pharmaceutically effective amount of an active agent having a solubility relative to the dispersed phase, and a co-solvent, such as benzyl alcohol, which is capable of increasing the solubility of the active agent relative to the dispersed phase. The continuous phase may include an aqueous solution of polyvinyl alcohol and water.

The present invention provides compositions, methods, and kits for treatment of pain. The invention provides a biocompatible nonerodible polymeric device which releases buprenorphine continuously with generally linear release kinetics for extended periods of time, and exhibits minimal initial burst upon subcutaneous implantation. Buprenorphine is released through pores that open to the surface of the polymeric matrix in which it is encapsulated. The device may be administered subcutaneously to an individual in need of continuous treatment with buprenorphine. Devices of the invention are washed with ethanol for greater than 30 minutes prior to subcutaneous implantation or have release characteristics of a device that has been washed with ethanol for greater than 30 minutes, such as a low peak to steady state plasma level ratio.

Transdermal therapeutic systems for administering analgesics, preferably buprenorphine or one of its pharmaceutically acceptable salts or pro-drugs, and processes for the production of such systems.

The present invention is directed to oral pharmaceutical compositions of buprenorphine and it pharmaceutically acceptable salts and the use thereof.

The present invention provides process for the production of opiate alkaloids. In particular, the present invention provides processes for the production of buprenorphine or a derivative of buprenorphine that minimizes the formation of impurities.

Dosage regimens of buprenorphine to treat withdrawal or abstinence syndrome in a drug dependent or opioid tolerant patient who is pregnant are described. The method includes treating withdrawal or abstinence syndrome of the patient by transdermal administration of an amount of buprenorphine effective to reduce withdrawal symptoms. For example, a first buprenorphine-containing transdermal dosage form for a second dosing period that is no more than about 5 days, the second dosage form comprising the same or a greater dosage of buprenorphine than the first dosage form; and a third buprenorphine-containing transdermal dosage form for a third dosing period that is at least 2 days, the third dosage form comprising the same or a greater dosage of buprenorphine than the second dosage form.

The present invention is directed to Buprenorphine Analog compounds of the Formula I, Formula II, Formula III, Formula IV, and Formula V, wherein R¹, R², R^3a, R^3b, R^15a, R^15b, X, Q, G, and Y are as defined herein.

Compounds of the Invention are useful for treating pain and other conditions modulated by activity of opioid receptors.

The present invention provides processes for the enrichment of buprenorphine in a product. In particular, the present invention provides processes for the enrichment of buprenorphine in a product using chromatographic techniques.