New 4-arylpiperidine derivatives for the treatment of pruritus
申请人:——
公开号:US20030004340A1
公开(公告)日:2003-01-02
There is provided a compound of formula I,
1
wherein Het
1
, R
1
, R
2
, R
3
, X and n have meanings given in the description, which are useful in the prophylaxis and in the treatment of diseases mediated by opiate receptors, such as pruritus.