Siberian ginseng helps to relieve fatigue, stress and anxiety as well as enhance strength and endurance. It improves concentration and vitality and acts as a natural sedative. In addition, ginseng helps to reduce cholesterol levels and ease symptoms of the common cold and a sore throat. Jamieson's Siberian Ginseng is derived from air-dried 100% pure, whole ginseng roots where the eleutheroside compounds are found naturally in trace amounts. This is a more affordable product compared to Panax (Asian or American) ginseng. Siberian Ginseng is regarded as a potent anti-stress nutrient, whereas Panax ginseng is used for its energy-enhancing properties. Restrictions Drug Interactions: Avoid caffeine as it can increase the effects of ginseng. Ginseng may react adversely with: MAO Inhibitors; anti-psychotics; diuretics; oral corticosteroids; methylphenidate (Ritalin) or other nervous system stimulants; ACE Inhibitors, angiotensin-II-receptor antagonists (may increase blood pressure); anticoagulant drugs/anti-platelet drugs. It may alter the dosage of anti-diabetes drugs/oral hypoglycemic agents (ginseng may reduce blood glucose levels). Nutrient Depletions: None known when taken as directed. Supportive Interactions: Ginseng may improve the strength of vaccines. Warnings and Precautions: Consult a health care practitioner if symptoms of mental or physical fatigue persist or worsen; if you are pregnant or breastfeeding; if you have any type of acute infection. Do not use if you have high blood pressure. Toxicity, Adverse Reactions and Side Effects: Do not exceed recommended dosage. High doses of Siberian ginseng are associated with nervousness, insomnia, headaches, diarrhea and stomach upset. Some women may experience increased menstrual bleeding or breast tenderness when taking ginseng. If this occurs, reduce dosage or stop taking this product.