Difenidol Hydrochloride Tablets is a drug with the function of regulating the vestibular system, inhibiting the vomiting center and improving the insufficient blood supply of vertebral basilar artery, which can be used for the treatment of vertigo, nausea, and vomiting caused by Ménière’s disease, vertigo and other diseases in otorhinolaryngology. It can also be used for motion sickness, such as half an hour before taking a bus, boat or airplane orally, which can prevent the symptoms of motion sickness and airsickness to a certain extent.This is a kind of over-the-counter medication, and Difenidol Hydrochloride Tablets mainly have some inhibitory effect on the nerve center to reduce the effects of motion sickness. Since Difenidol Hydrochloride Tablets can act as a nerve paralyzing agent, you should be careful not to overdo it when taking motion sickness pills, as overdose intake may lead to coma, which may be life-threatening in serious cases. If you experience adverse reactions after taking motion sickness pills, especially chest tightness and drowsiness, you need to seek medical attention.