Treatment of neuropathic pain or fibromyalgia

摘要

A compound of formula I or a pharmaceutically acceptable salt thereof in which R1 and R2 are independently H or methyl (for example N,N-dimethyl-1-[1-(4-chlorophenyl)cyclobutyl]-3-methylbutyl amine hydrochloride optionally in the form of its monohydrate) is used for treating fibromyalgia or neuropathic pain, such as pain associated with diabetes mellitus, shingles, nerve injury and varied peripheral neuropathies.