Marshall Pet Products Ferret Rx Upper Respiratory Treatment 4oz (2 x 2oz) Help relieve symptoms of upper respiratory distress, colds, runny noses and congestion 100% natural veterinary formula designed specifically for ferrets Can be used in conjunction with antibiotics for an effective treatment Most effective when used underneath ferret's nostrils Natural ingredients work to open nasal passages and increase oxygen flow in ferrets with runny noses, head and chest congestion and labored breathing