Common cold prevention

Andrographis enhances immune system; used for prevention and treatment. Take 150-250 mg of andrographis extract daily, containing 5% of andrographolide, in divided doses, for many months.

American ginseng enhances immune system; used for prevention and treatment. Take 1.5-3.0 g of dried American ginseng root daily, in divided doses, for many weeks.

Asian ginseng is an adaptogen; enhances immune system; used during the onset of disease and for prevention. Take 0.5-1.5 g of dried Asian ginseng root or 75-225 mg of standardized Asian ginseng root extract containing 5-7% of ginsenosides daily, in divided doses, for many weeks.

Garlic enhances immune system; used for prevention. Take garlic, containing 5-15 mg of alliin or 2.5-5.0 mg of allicin potential or 2-6 g of aged garlic daily, in divided doses, for many months.

N-Acetylcysteine enhances immune system; used for prevention. Take 0.5-1.5 g of N-acetylcysteine daily, in divided doses, for many months.

Probiotics alleviate symptoms; reduce duration and severity; used for prevention and treatment. Take probiotics daily, in divided doses, for many months, as suggested on the label.

Vitamin C enhances immune system; used for prevention and treatment. Take 0.5-4.0 g of vitamin C daily, in divided doses, for many months.

Zinc is an immune enhancer; enhances immune system; used for prevention. Take 25-50 mg of zinc daily, in divided doses, for many months. Better if used with copper.

Arginine enhances immune system; used for prevention. Take 1.5-3.0 g of arginine daily, in divided doses, for many months.

Astragalus is an adaptogen; enhances immune system; used for prevention and treatment. Take 10-15 g of dried astragalus root daily, in tea form, in divided doses, for many months.