Recently I have been very depressed with a family situation and sleeping is impossible and for two weeks I've had tinnitus in my left ear so as soon as I lie down. It's brutal.. How often can I take 1mg of lorazepam? Every 6 hrs? I'm lying in bed wide awake at 2 am just 5 hrs after taking the lorazepam. Would like to take another tablet now. I take 40 mg of Celexa in the afternoon. With the anxiety over been having for days I've been taking 0.5mg lorazepam during the day and 1 mg at night. Can I take 1 mg every 6 hours for 24 hrs for example? Is there a cap? If I don't take it I can't sleep at all because I'm so stressed out with a personal family problems.