Abstract: A tricyclic compound of Formula (I): wherein: R1 is hydrogen or hydroxy; R2 is hydrogen or hydroxy; or R1 and R2 together are oxygen; A is a bond, CH2, CH CH3, CH2 CH2 or C(CH3)2; R3 and R4 are the same or different and are hydrogen, halo, C1-C6 alkyl, C1-C4 alkoxy, trifluoromethyl NO2, COR6, COOR6 or NR6R7, wherein R6 and R7 are the same or different and are hydrogen, C1-C6 alkyl or benzyl; R5 is hydrogen, C1-6 alkyl, C2-6 alkenyl, C3-6 cycloalkyl, (O═C)—C1-6 alkyl, (O═C)—C2-6 alkenyl, (O═C)—C3-6 cycloalkyl wherein said alkyl, alkenyl and cycloalkyl groups can be substituted by 1, 2 or 3 groups selected from halo, C3-C6 cycloalkyl, phenyl or substituted phenyl, and salts thereof, are particularly useful for treating, among other indications, neuropathic pain and other CNS disorders.