e200921c_sity_of_Michigan_Health_System__Why
[Supplement] 3 Stars Andrographis 100 mg of a standardized extract two times per day [Why] 
Andrographis contains bitter constituents that are believed to have immune-stimulating and anti-inflammatory actions. Andrographis contains andrographolides that have demonstrated immune-enhancing qualities in preliminary studies.3 , 4 Double-blind trials have shown that common cold symptoms improve5 , 6 and recovery is faster7 when andrographis extract containing 48 to 60 mg andrographolides is taken in three or four divided doses daily, beginning as soon as possible after symptoms appear. In addition, preliminary research in Russia suggests andrographis extract may be effective for the treatment of influenza.8 This extract was also tested for preventing colds in a double-blind study of teenagers.9 After three months, the group taking 5 mg of andrographolides twice daily had only half the number of colds experienced by the placebo group.
Common Cold/Sore Throat (Holistic) | University of Michigan Health System
Why