Feliz-S 10 (escitalopram) and Lonazep 0.25?mg (clonazepam) should be used for anxiety and sleep issues only if prescribed by your doctor. Escitalopram works over time to reduce anxiety, while clonazepam can help with immediate sleep or panic relief. Do not start, stop, or change doses on your own, and discuss any side effects or persistent symptoms with your doctor.