Has your horse always coughed a little at the beginning of work or when the air is dusty? But this time it lasts a bit, you brought the veterinarian and there the diagnosis fell: Emphysema ... Emphysema in the horse is a frequent chronic respiratory disease and very debilitating. Care-and-nature offers food supplements specially formulated to reduce seizures and provide maximum relief to emphysematous horses, especially during periods of risk.