Your veterinarian may also recommend Benadryl has a mild sedative. An overdose of Benadryl for cats can have serious negative side effects and even cause death. Benadryl can help a cat relax a little but if youre looking to prevent nausea and vomiting episodes you should probably choose a different medication.
Do not give your cat Benadryl without consulting your vet if they are currently taking any of the following medications. Its actually a combination of two drugs one of them being diphenhydramine aka. In short Yes. Benadryl is a widely used medicine for humans which treats common cold runny nose itching and motion sickness.