Once daily inhalation of budesonide in the treatment of chronic asthma: a clinical comparison.

In a short-term, open cross-over clinical efficacy study, inhalation of budesonide 800 micrograms once daily was compared to inhalation of budesonide 400 micrograms twice daily and beclomethasone dipropionate 200 micrograms four times daily in 20 patients with stable steroid-dependent chronic asthma. Budesonide was inhaled through a spacer tube. The drugs were given in 3-week periods. Clinical symptoms, consumption of beta 2-agonists and peak flow were measured. In all but one patient, the reduced frequency of budesonide inhalations to only once daily has not given significantly different results compared with more frequent inhalations.