Do Cats Get Motion Sickness?
Yes — cats can and do experience motion sickness, though it’s often underdiagnosed because most cats travel so rarely that owners attribute their distress to anxiety rather than true vestibular-triggered nausea. Motion sickness in cats is caused by the same mechanism as in humans: a mismatch between what the inner ear (vestibular system) detects and what the eyes see. When the car is moving but the inner ear is registering that motion while the cat’s visual field appears stationary (or is focused on the interior of a carrier), the brain receives conflicting signals and responds with nausea.
True motion sickness is more common in kittens and young cats because the vestibular structures of the inner ear are not fully mature. Many young cats do “grow out” of motion sickness by the time they’re 12-18 months old. Adult cats who continue to experience motion sickness may have more sensitive vestibular systems or may have developed a conditioned anxiety response to travel from past negative experiences.
Signs of Motion Sickness in Cats
Because cats can’t tell us they feel nauseous, recognizing the signs requires observation. Classic signs of cat motion sickness include:
- Excessive drooling (hypersalivation): One of the most reliable signs. Nausea in cats causes increased salivation, and you may notice a wet chin, damp carrier bedding, or visible strands of saliva.
- Yawning repeatedly: Repeated yawning during travel is often a sign of nausea rather than sleepiness.
- Lip-licking or swallowing repeatedly: Cats about to vomit often show excessive swallowing and lip-licking motions.
- Vomiting: The most obvious sign — cats may vomit food or bile during or shortly after the car journey. Vomiting during the first 20-30 minutes of travel strongly suggests motion sickness rather than anxiety alone.
- Lethargy or immobility: The cat may become completely still, huddled in the back of the carrier, or appear “zoned out” — this can be nausea without vomiting.
- Defecating or urinating in the carrier: Loss of bladder or bowel control during travel can reflect severe stress or nausea. A cat that regularly eliminates during car trips is experiencing significant distress and needs support.
- Vocalization: Persistent meowing, howling, or crying throughout the journey — though this can also reflect anxiety without motion sickness.
Distinguishing pure motion sickness from pure anxiety versus a combination of both can be difficult. Many cats experience anxiety about car travel (based on associating it with the vet) that worsens any underlying motion sickness tendency. Addressing both components gives the best outcome.
Preventing Motion Sickness: Non-Medical Strategies
Before reaching for medication, several evidence-based strategies can significantly reduce travel nausea:
Fast before travel: Withhold food for 3-4 hours before a car trip. An empty stomach reduces the severity of vomiting and nausea. Ensure water is available up until departure.
Carrier position: Face the carrier forward, in the direction of travel, on the back seat. Side-facing or rear-facing positions are more disorienting to the vestibular system. Securing the carrier to prevent swaying and bouncing also helps.
Ventilation: Ensure the carrier has good airflow. Stuffy, warm carriers worsen nausea. Direct car vents toward the carrier or open a window slightly — fresh air helps many cats significantly.
Reduce visual motion: Draping a breathable cloth over the carrier (while maintaining airflow) reduces visual input and can help some cats — similar to the principle behind horse blinkers. However, some cats find an uncovered carrier less stressful because they can observe their surroundings; try both to see which works for your cat.
Short trips for desensitization: The carrier and car can be associated with positive experiences rather than just vet visits. Leave the carrier out as furniture at home with comfortable bedding inside. Take the cat on very short trips to pleasant destinations (a friend’s home, a quiet park) without any vet-related outcome. Building positive carrier and car associations over weeks or months reduces the anxiety component that worsens nausea.
Pheromone support: Spray the inside of the carrier with Feliway Classic 30 minutes before the journey to utilize the calming properties of synthetic facial pheromone. Some cats respond well to this; others show little effect.
Smooth driving: Sudden braking, sharp corners, and rapid acceleration all worsen vestibular disruption. Drive smoothly, at a moderate speed, and take wider turns than you normally would.
Veterinary Medications for Cat Motion Sickness
When non-medical strategies are insufficient, your vet can prescribe safe, effective medications:
Maropitant (Cerenia): An NK1 receptor antagonist specifically licensed for prevention of vomiting in cats. It works centrally in the chemoreceptor trigger zone as well as peripherally. Maropitant is highly effective for motion sickness and is given as a tablet 1-2 hours before travel. It has an excellent safety profile in cats and is currently the gold standard for feline motion sickness treatment.
Gabapentin: Not primarily an anti-nausea medication, but widely used in cats for anxiolysis (reducing anxiety) before travel or vet visits. Reducing the anxiety component of travel distress often reduces the overall experience of nausea. Given the evening before and the morning of travel.
Mirtazapine: An appetite stimulant with antiemetic (anti-nausea) properties that is sometimes used for cats prone to travel nausea, particularly those that are also underweight.
Diphenhydramine (Benadryl): An over-the-counter antihistamine that causes mild sedation and has antiemetic properties. While used occasionally, it’s generally less effective and reliable than maropitant for cats. Always consult your vet before giving any over-the-counter medication to your cat.
When to See a Vet
Most cats with motion sickness can be managed with the strategies above. See your vet if: the cat experiences severe vomiting on every car trip, vomiting persists for hours after arrival, the cat shows signs of dehydration after travel, or the distress is so severe that travel is impossible. Your vet can prescribe maropitant (Cerenia) for routine travel and help you develop a desensitization protocol for ongoing anxiety management.
Repeated vomiting in the car is most commonly caused by motion sickness — triggered by vestibular system disruption from vehicle movement — or anxiety, or both. Withholding food for 3-4 hours before travel, ensuring good ventilation in the carrier, facing the carrier forward, and asking your vet about maropitant (Cerenia) are the most effective interventions.
Maropitant (Cerenia) is the most effective prescription medication for feline motion sickness, given 1-2 hours before travel. Gabapentin helps with the anxiety component. Do not give human motion sickness medications or antihistamines without first consulting your vet — dosing and safety in cats must be confirmed by a professional.
Leave the carrier out permanently with comfortable bedding so your cat associates it with comfort, not stress. Take short, positive trips to locations that don’t involve the vet. Spray the carrier with Feliway Classic 30 minutes before travel. Ask your vet about gabapentin for significant travel anxiety. Gradually build positive car associations over several weeks.
Many kittens and young cats experience motion sickness due to immature vestibular development, and many do improve as they reach adulthood (12-18 months). Adult cats that continue to experience motion sickness may need ongoing management with the strategies above and, for severe cases, veterinary medication.
No — withhold food for 3-4 hours before a car trip. An empty stomach significantly reduces both the likelihood and severity of vomiting in cats prone to motion sickness. Always ensure access to water up until the time of departure.