Rb Pharmaceuticals Limited

Alliance Pharmaceutical Corp.

Indivior UK Limited

Neil Hyde

Christopher Bourne Chapleo

John Alfred Davis

Graham Cairns

Kerry Anne Miller

An analgesic composition, in parenteral unit dosage form or in a unit dosage form suitable for delivery via the dermis or mucosa, comprises buprenorphine and an amount of naltrexone such that the ratio by weight of buprenorphine to naltrexone delivered to or reaching the plasma of a patient is in the range 100:1 to 5000:1. The analgesic action of the buprenorphine is potentiated by the low dose of naltrexone. Also provided are a method of treatment of pain and the use of buprenorphine and naltrexone for the manufacture of a medicament.

Medicinal compositions comprising buprenorphine and naltrexone

A water- and oxygen-occlusive pack is described. The pack encloses an inert atmosphere containing medicinal tablets, wherein the tablets contain buprenorphine or a salt or ester thereof.

Pack of medicinal tablets

An analgesic composition, in parenteral unit dosage form or in a unit dosage form suitable for delivery via the dermis or mucosa, comprises buprenorphine and an amount nalmefene such that the ratio by weight of buprenorphine to nalmefene delivered to or reaching the plasma of a patient is in the range 22.6:1 to 40:1. The analgesic action of the buprenorphine is potentiated by the low dose of nalmefene. Also provided are a method of treatment of pain and the use of nalmefene and buprenorphine for the manufacture of a medicament.

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Hull, United Kingdom

Neil Hyde