ABSTRACT
SUMMARY Leukotriene antagonists are a newly introduced class of drugs for the treatment of asthma. Studies that have been published so far show that leukotriene antagonists have mild anti-inflammatory and bronchodilating effect and are particularly effective in treating Aspirin and Exercise induced asthma. In the 1997 ATS and the 1998 GINA Guidelines, Leukotriene antagonists are included and their use is suggested for the treatment of mild and moderate asthma. Pneumon 1999, 12 (2): 123-132