Despite extensive research proving that dogs' systems function differently from humans, medications are still tested on animals - including dogs - even in the UK. Alarmingly, some human medications, despite being widely available, have never been officially approved for safe usage in dogs. Medications That Pose a Risk to Dogs Certain medicines have undergone testing on dogs but still lack approval for veterinary use. These include: ⚠️ Piriton ⚠️ Benadryl ⚠️ Aspirin While vets