I recently started using this anti histamine for the first time. I don't intend to take more than 10 mg per day. The pharmacist said it makes less than one fifth of the people who use it drowsy, compared to benadryl which makes more people drowsy. How significantly would this increase the respiratory depression (and other physiological affects) of opiates and/or benzos? I'm assuming it would interact less severely than benadryl, which I know is often used as a potentiator for other sedatives. Can anyone chime in?
