*Preventing the common cold.
*Some Internet vendors offer andrographis products that contain extra amounts of an active ingredient called andrographolide. Some of these products are almost 30% andrographolide. However, be careful; the safety and effectiveness of andrographis preparations with high andrographolide content are unknown.
==Phytoconstituents==
Andrographolide, andropanolide, andrographic acid and andrographidine A, andrographatoside, andropaniculosin A and andropaniculoside A and others.
==Dosage==
For decreasing symptoms of common cold, doses of 400 mg of standardised andrographolide are required three times daily; for preventing common cold, a dose of 200 mg daily for 5 days in a week; for relieving fever and sore throat in pharyngotonsilitis, doses of 3 g and 6 g daily were used. Use 6–9 g for influenza with fever, sore throat, ulcers in the mouth, acute or chronic cough, colitis, dysentery, urinary tract infection, carbuncles, sores and venomous snake bite