Motion sickness is manifested as nausea and vomiting, vertigo, etc. The treatment drugs are anticholinergic drugs, antihistamines, dopamine receptor antagonists, calcium channel blockers and so on. 1. Anticholinergic drugs: can relieve nausea and vomiting and other gastrointestinal reactions of motion sickness, such as metoclopramide, scopolamine and so on. 2. Antihistamine drugs: anti-allergic, anti-dizziness and anti-emetic effects, such as Benadryl, chlorpheniramine maleate, promethazine, etc. 3. Dopamine receptor antagonists: can promote gastrointestinal emptying, enhance gastric dynamics, reduce vomiting symptoms, such as domperidone. 4. Calcium channel blockers: can improve vestibular stimulation tolerance, such as flunarizine. To prevent motion sickness, it is best to take medication 30 minutes before traveling, and the medication must be used under the guidance of a doctor.