This is a combination homeopathic remedy, containing Arsenicum, Gelsemium and Eupatorium.

It can be used for cold and flu prevention, in the dose of 4 drops 4 times a day. The dosage is the same for children and adults.

AGE 30c can also be used for flu, and covers the early onset stages to fully developed influenza, and the lingering final stages. The dose is 4 drops e times a day, for up to 5 days, for both children and adults.

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http://www.isbellmedicalpractice.com/handouts/Colds%20and%20Flu.pdf