N-[(3S)-pyrrolidin-3YL]-benzamide derivatives as monoamine re-uptake inhibitors

A compound of Formula (I) and pharmaceutically and/or veterinarily acceptable derivatives thereof, wherein: R1, R2, R3 and R20 are each independently H, CI, Br, F, I, CF3, OCF3, Me or Et; R4 is het or C3-7 cycloalkyl optionally substituted by C1-4 alkyl, C1-4 alkoxy, alkoxyalkyl containing 2 to 4 carbon atoms or -S-(C1-4 alkyl); a is 0 or 1; and het is a non-aromatic 4-, 5- or 6- membered heterocycle which contains at least one N, O or S heteroatom, optionally fused to a 5- or 6- membered carbocyclic group or a second 4-, 5- or 6-membered heterocycle which contains at least one N, O or S heteroatom, wherein the het group is optionally substituted by at least one substituent independently selected from C1-8alkyl, C1-8alkoxy, OH, halo, CF3, OCF3, SCF3, hydroxy-C1-6alkyl, C1-4 alkoxy-C1-6alkyl and C1-4 alkyl-S-C1-4alkyl; provided that at least one of R1, R2 and R3 are other than H. The compounds of the invention exhibit activity as both serotonin and noradrenaline re-uptake inhibitors and therefore have utility in a variety of therapeutic areas, for example urinary incontinence.