[{"from": "human", "value": "Please give me some details about this molecule. [C][C][=C][C][=Branch1][=Branch1][=C][C][=C][Ring1][=Branch1][C][N][C][C][N][Branch1][Branch1][C][C][Ring1][=Branch1][C][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][Cl]"}, {"from": "gpt", "value": "The molecule is a histamine H1 antagonist with antiemetic and antivertigo properties. It is used in the symptomatic treatment of motion sickness and control of vertigo associated with vestibular system diseases. It also exhibits anticholinergic, central nervous system depressant, and local anesthetic effects. Commonly marketed under the brand name Antivert in the U.S., meclizine is available as oral tablets."}]