[New ways in aerosol therapy. Development of FCKW-free gases-- powder inhalation systems].

New approaches in the field of aerosol therapy are pointing into two directions. In one, chlorofluorocarbons are now beginning to make place for the hydrofluoroalkanes--which are non-destructive of the ozone layer--as propellants for use in metered-dose inhalers. On the other hand, the use and new development of dry powder inhalation devices are on the increase. In the future, systemic pharmacotherapy applied via aerosols will provide an important option for use not only in the field of pneumology, but also, for example, in the treatment of diabetes mellitus and for anticoagulation.