Please always double check with the authorities as rules and regulations can often change with no warning, and requirements can become more or less stringent depending on perceived risk and to some extent the relationships between two countries.
When pets are being transported long distances, please do not sedate them. They are left in cages and are not overseen adequately during the journey to make sure they are safe. ACP (acetylpromazine maleate) was used a long time ago, but is no longer because of the risks associated with it.
It is better to spray the inside of the cages with artificial pheromones such as Feliway® for cats and Adaptil® for dogs to help them reduce stress whilst being transported.
Once your pet arrives at the new destination, it is worth checking in with a local vet to see what the local conditions are like, and what regular medications are recommended. The main risk is heartworm in endemic areas, but also flea and tick problems are likely to be encountered.