Long term use of ginseng
We prefer ginseng not be taken daily for prolonged periods. As a general rule, you may consider taking 100mg of panax ginseng extract 1-3 times in a week (a week off each month). This is a rough guideline that you can adapt to your own unique needs.
Ginseng side effects
Insomnia is a common side effect from ginseng overuse when it’s combined in high doses with other herbs or nutrients that cause alertness.
High dosages of ginseng can cause overstimulation, restlessness, rapid heart beat, anxiety, headache, and insomnia. Just with any medication or supplement, the right dosage can be quite helpful while an excessive amount can lead to unpleasant adverse effects. Discuss with your doctor before using a ginseng product if you have a heart condition, are taking blood pressure pills, hormone medications, anti-depressants, or have a serious health condition.
Patients being treated with the blood-thinning drug Coumadin (warfarin) should probably avoid using ginseng, since ginseng seems to reduce the drug's effects. Ginseng use for two weeks was tied to a significant reduction in the INR, meaning that the blood was now less thin and more prone to clotting.
Ginseng should be used cautiously in those with heart disease. Keep the dosage low in order to prevent heart racing or high blood pressure.
Too much ginseng can cause side effects including nervousness and anxiety.