Abstract: This paper presents the bronchodilating effects of aerosol PGE; in the treatment of80 asthma patients. The therapeutic results show that this preparation has a definiteeffect. The gross efficacy is 37/53.Its effect is more prominent especially on the patients suffering from asthma for less than 15 years, and in these cases, its efficacy may reach 35/46. However, this preparation may produce short-time local irritation on some patients.