investigated the potential of the histamine H1 blocker hydroxyzine to improve sleep in patients with cirrhosis and minimal hepatic encephalopathy. All 35 patients (mean age 56 years [range 36–69 ...

This is why you generally see Benadryl or hydroxyzine recommended in place of second-generation nondrowsy antihistamines for people who have a rash or hives. These are not all of Benadryl's ...