Andrographis has been found to be an effective anti-biotic, anti-viral, anti-parasitic and immune system stimulant. It is used in viral hepatitis, children’s bowel complaints, gastric acidity, liver congestion, flatulence.
It is being increasingly used as treatment for colds. Reasonably good evidence tells us that it can reduce the severity of cold symptoms. It may also help prevent colds. Preliminary evidence suggests that it stimulate immunity, potentially making it useful for general immune support. Interestingly, the ingredient of Andrographis used for standardization purposes, andrographolide, does not appear to affect the immune system as much as the whole plant extract.
Preliminary studies in animals also suggest that andrographis may offer benefits for preventing heart disease.