Motion-sickness pills usually last a few hours

Carsickness drugs should be based on specific drug judgment can generally maintain a few hours.

Carsickness drugs include diphenhydramine, dimenhydrinate, promethazine, etc., patients in the car if taking diphenhydramine, generally can maintain four to six hours; patients if taking dimenhydrinate, generally can maintain six to eight hours; patients if taking promethazine, maintain a relatively long time, generally can reach six to twelve hours.

Patients should be based on the distance of the road, under the guidance of the doctor to choose the appropriate drug to relieve uncomfortable symptoms.