Pharmaceutical compositions comprising 2,3-Diaryl-pyrazolo[1,5-B]pyridazine derivatives

摘要

A pharmaceutical composition comprising a compound of formula (I) and pharmaceutically acceptable derivatives thereof in which: R<0> is halogen, C1-6alkyl, C1-6alkoxy, C1-6alkoxy substituted by one or more fluorine atoms, or O(CH2)nNR<4>R<5>; R<1> and R<2> are independently selected from H, C1-6alkyl, C1-6alkyl substituted by one or more fluorine atoms, C1-6alkoxy, C1-6hydroxyalkyl, SC1-6alkyl, C(O)H, C(O)C1-6alkyl, C1-6alkylsulphonyl, C1-6alkoxy substituted by one or more fluorine atoms, O(CH2)nCO2C1-6alkyl, O(CH2)nSC1-6alkyl, (CH2)nNR<4>R<5>, (CH2)nSC1-6alkyl or C(O)NR<4>R<5>; with the proviso that when R<0> is at the 4-position and is halogen, at least one of R<1> and R<2> is C1-6alkylsulphonyl, C1-6alkoxy substituted by one or more fluorine atoms, O(CH2)nCO2C1-6alkyl, O(CH2)nSC1-6alkyl, (CH2)nNR<4>R<5> or (CH2)nSC1-6alkyl, C(O)NR<4>R<5>; R<3> is C1-6alkyl or NH2; R<4> and R<5> are independently selected from H, or C1-6alkyl or, together with the nitrogen atom to which they are attached, form a 4 - 8 membered saturated ring; and n is 1-4, in combination with a nitric oxide synthase inhibitor or a sodium channel inhibitor, in admixture with one or more physiologically acceptable carriers or excipients.