40
Participants
Start Date
December 31, 2013
Primary Completion Date
July 31, 2014
Study Completion Date
July 31, 2014
Theophylline with azithromycin
"Drug: Theophylline(100mg,sustained release tablets). Multi-dose of theophylline(100mg,twice daily) will administered at 8 am and 8 pm from day 1 to day 7.~Drug:Azithromycin(250mg, capsules). Multi-dose of azithromycin(500mg,once daily) will administered at 8 pm from day 1 to day 7."
Theophylline alone
Drug: Theophylline(100mg,sustained release tablet). Multi-dose of theophylline(100mg,twice daily) will administered at 8 am and 8 pm from day 8 to day 14.
Zhujiang Hospital,Southern Medical Universtiy, Guangzhou
Zhujiang Hospital
OTHER