For some cats, car rides produce a great deal of anxiety. A combination of fear and not understanding what is happening will cause drooling, shaking, or even vomiting in some cats. Some cats will howl the entire trip. In humans, we refer to this as car sickness or motion sickness; however, true motion sickness is a result of an inner ear problem. Some pets truly do have motion sickness, and for these animals products such as Dramamine can be used under the supervision of a veterinarian. For most pets, however, the sickness is strictly an over-reaction to the fear and apprehension of the car noise, motion, etc. If your pet would rather be anywhere besides in the car, here is how you can help her overcome the fear of car rides.
Get your cat used to the car environment. Get in the car together and have a treat. Talk. Be happy. Make it a fun time. Do not have the car running, just share a treat and make it a positive experience. Repeat this a number of times on different occasions. You may want to feed your cat in the car. If your cat is afraid of even getting into the car, try feeding or giving a treat close to the car.
Get your cat used to the car while it is running. Repeat step one, only this time start the car. Give a treat before and after. If she looks or acts nervous, talk to her in an 'upbeat' fashion. Take your time and make sure she is relaxed before ending the session.
Get your cat used to the motion of the moving car. Once she is used to the car running without any fearful reaction, back the car to the end of the driveway, then forward again to the garage. Give her a treat and praise her. Repetition is the key. The more you do this the more confident your cat becomes that cars are no problem. In fact, to her it becomes a great place for attention, praise, and even treats.
Now it is time to take a short trip around the block. Treats and praise before and after, and calm, reassuring talk throughout the ride are a pre-requisite. Gradually increase the distance traveled until your cat is calm no matter how long she's in the car.
Some animals still need something to calm them. There are non-prescription products such as Serene-um, Pet Calm, and Rescue Remedy. In severe cases, even stronger prescription anti-anxiety medications can be dispensed by your veterinarian.
Get kittens used to the car while they are still young and are more receptive to new adventures. Pets make excellent traveling companions so it is well worth the training now for the years of enjoyment it will bring both of you once you get over this obstacle together.