Similia's Aspidosperma is an excellent medicine for respiratory diseases. Asthma is relieved using this medicine and it acts as a respiratory tract stimulant. It also relieves congestion in the chest and promotes better breathing. It increases the oxygen in the blood and also helps in eliminating carbonic acid. Patients suffering from breathing problems find themselves relieved after using this medicine. Oxygen level is increased in critical patients who find breathing difficulties pertaining to several Respiratory problems.