Did you know? Cats get asthma. Symptoms of feline asthma can include coughing, wheezing, shortness of breath and lethargy. It is primarily caused by allergic bronchitis where the cat’s lungs become inflamed due to an inhaled allergen. Smoke, pollen, dust, scented candles, cleaning products, cat litter and perfumes can trigger an asthma attack. Ask Ariel's Olive Leaf Extract For Pets is a natural anti-viral supplement that is helpful for cats with asthma. It helps support a healthy respiratory and immune system.