Dimenhydrinate
Gravol is a brand-name antihistamine medication containing dimenhydrinate, primarily used to prevent and treat nausea, vomiting, and dizziness associated with motion sickness. It is also sometimes used for vertigo and morning sickness during pregnancy under medical guidance. The medication is available over-the-counter in various forms including tablets, chewable tablets, and liquid.
Gravol is an antihistamine used to prevent and treat nausea, vomiting, and dizziness, particularly from motion sickness.
Key facts at a glance
- RxNorm
- 2594763
- Generic
- Gravol
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Gravol is primarily used to prevent and treat nausea, vomiting, and dizziness caused by motion sickness. It may also be used for vertigo and nausea associated with inner ear disorders. Some healthcare providers recommend it for morning sickness during pregnancy when other measures are insufficient.
Gravol contains dimenhydrinate, an antihistamine that works by blocking H1 histamine receptors in the brain's vomiting center and the vestibular system of the inner ear. This reduces signals that trigger nausea and vomiting, helping to prevent motion sickness symptoms.
Gravol may cause drowsiness, so avoid driving or operating machinery until you know how it affects you. Alcohol and other sedatives can increase drowsiness. Consult a healthcare provider before use during pregnancy or if you have conditions such as glaucoma, enlarged prostate, or urinary problems. It may interact with other medications, so inform your doctor or pharmacist of all current medications.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed July 26, 2026. · Read our editorial policy