“…Further approaches in the treatment of resistant depression may be to switch to another drug of the same class or to another class of antidepressants [30, 52 ± 54], or to augment the antidepressant with a further drug [52,53,64,80,84] such as thyroid hormones [6,9,49,50,89], lithium [76,82], the dopaminergic drug bupropion [15], pindolol [14,62], dexamethasone [27], the atypical antipsychotic drug risperidone [69] or buspirone [90].…”