Topical application of muscarinic analgesic drugs such as...

A - Human Necessities – 61 – K

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Details

A61K 31/22 (2006.01) A61K 31/435 (2006.01) A61K 45/06 (2006.01) A61K 47/24 (2006.01)

Patent

CA 2333076

The invention is directed to methods and pharmaceutical compositions for the topical administration of analgesic drugs which affects peripheral muscarinic receptors such as neostigmine. In particular, the invention relates to topical administration of an analgesic agent, e.g., neostigmine, optionally in admixture with a skin- or mucosal-specific penetration enhancer, to produce a localized analgesic effect in inflamed or non-inflamed skin or mucosal tissue, and without a transdermal or transmucosal migration of the agent, e.g., into the central nervous system.

La présente invention concerne des procédés et des compositions qu'on utilise pour administrer de manière topique des médicaments analgésiques qui affectent les récepteurs muscariniques périphériques tels que la néostigmine. De manière plus spécifique, cette invention concerne l'administration topique d'un agent analgésique, de la néostigmine par exemple, éventuellement mélangé avec un activateur de pénétration spécifique à la peau ou aux muqueuses, pour produire un effet analgésique local dans des tissus cutanés ou de muqueuses enflammés ou non enflammés, et ce, sans que l'agent migre à travers le derme ou à travers les muqueuses dans le système nerveux central par exemple.

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