Londborg PD, Smith WT, Glaudin V, Painter JR. Short-term cotherapy with clonazepam and fluoxetine: anxiety, sleep disturbance and core symptoms of depression. J Affect Disord 61: 73-79
Summit Research Network, 1849 NW Kearney, Suite 201, 97209, Portland, OR, USA. Journal of Affective Disorders
(Impact Factor: 3.38).
01/2001; 61(1-2):73-9. DOI: 10.1016/S0165-0327(99)00195-0
SSRIs resolve depression slowly and may increase anxiety or insomnia. Adding clonazepam to fluoxetine sped response, raising the question of mechanism of action: reducing symptoms co-existing with depression, suppressing side-effects, and/or alleviating core depressive symptoms.
Adult outpatients randomly assigned to double-blind treatment with fluoxetine 20 mg+placebo or fluoxetine+clonazepam 0.5-1.0 mg were assessed by a HAM-D anxiety cluster, sleep disturbance cluster, and core symptoms cluster. Results: No serious AEs were noted; no cotherapy patients dropped for AEs. Cotherapy proved superior (HAM-D total, anxiety cluster, sleep disturbance cluster ANOVA P<0.001; core symptoms P<0.011). Treatment-emergent anxiety was reported for 25% of placebo patients and 7% of cotherapy patients (P<0.037); sleep disturbance for 10% of placebo patients and no cotherapy patients (P<0.055). Sedation and dry mouth were more common for cotherapy treatment (P>0.20).
Extended treatment and refractory depression were not addressed.
Low-dose cotherapy of fluoxetine with clonazepam was safe and accelerated response over 21 days of treatment, decreasing anxiety and sleep disturbance as symptoms and partially suppressed them as SSRI side-effects; it also modestly reduced core symptoms of low mood and loss of interest.
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