<unk>  is used in the treatment of itchiness, anxiety, and nausea due to motion sickness. A systematic review concluded that<unk>  outperforms placebo in treating generalized anxiety disorder. Insufficient data were available to compare the drug with benzodiazepines and buspirone.<unk>  can also be used for the treatment of allergic conditions, such as chronic urticaria, atopic or contact dermatoses, and histamine-mediated pruritus. These have also been confirmed in both recent and past studies to have no adverse effects on the liver, blood, nervous system, or urinary tract. Use of<unk>  for premedication as a sedative has no effects on tropane alkaloids, such as atropine, but may, following general anesthesia, potentiate meperidine and barbiturates, and use in pre-anesthetic adjunctive therapy should be modified depending upon the state of the individual. In other cases, the usage of<unk>  is as a form of non-barbiturate tranquilizer used in the pre-operative sedation and treatment of neurological disorders, such as psychoneurosis and other forms of anxiety or tension states. Doses of<unk>  hydrochloride used for sleep range from 25 to 100 mg.
Hydroxyzine
Naltrexone
Nabilone
Chloracyzine
Phenelzine
Nortriptyline
Ketanserin
Promethazine