#$%^&*AU2010202203B220120823.pdf#####Abstract Use of alpha-1-antitrypsin for the preparation of drugs for the treatment of chronic fatigue syndrome 5 The present invention relates to the use of alpha-1-antitrypsin for the preparation of effective drugs for the treatment of chronic fatigue syndrome. In addition, the present invention relates to the use of plasma or other therapeutic forms with an alpha-1antitrypsin content sufficient to obtain a dose of 6 mg or more of alpha-1-antitrypsin per 10 kg of body weight at a frequency of between 1 and 31 days. The present invention also relates to methods of treatment of chronic fatigue syndrome using alpha-1 -antitrypsin.