Sir,my dad is chronic patient of depression,he is 80 yrd old n takes zolfresh 10 mg one tab at abt 11 pm n then half of same at abt 3 at night.even then he cant sleep,last week the doc prescribed alprax .25 mg n he could sleep properly,can we give him alprex .25 mg ,is it so strong that it can replace zolfresh 10 mg