It depends on which type of travel sickness your pet suffers from. There are two main causes and the most common is due to anxiety or excitement and for this we recommend giving Scullcap & Valerian tablets to calm and relax them during the journey. Some animals do suffer from true motion sickness and for these animals it is best to give Digestive Supplement tablets to settle the stomach and the reduce nausea. See the section on Travel  in our A-Z of Common Problems. You can also download our Travel sickness leaflet here.