Gentian is an herb. The root of the plant and, less commonly, the bark are used to make medicine.
Gentian is used for digestion problems such as loss of appetite, fullness, intestinal gas, diarrhea, gastritis, heartburn, and vomiting. It is also used for fever, hysteria, and high blood pressure. Some people use gentian to prevent muscle spasms, treat parasitic worms, start menstrual periods, and as a germ killer.
Gentian is applied to the skin for treating wounds and cancer.
Gentian is used in combination with European elderflower, verbena, cowslip flower, and sorrel for treating symptoms of sinus infections (sinusitis). It is used in combination with other products for malaria.
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Pregnancy and breast-feeding: Not enough is known about the use of gentian during pregnancy and breast-feeding. Stay on the safe side and avoid use.
Low blood pressure: There is a concern that using gentian might make low pressure worse or interfere with drug treatment to increase blood pressure.
Surgery: Because gentian might affect blood pressure, there is a concern that it might interfere with blood pressure control during and after surgery. Stop using gentian at least 2 weeks before a scheduled surgery.
BY MOUTH: For new or ongoing swelling of the sinuses (sinusitis): A specific combination product containing 12 mg of gentian root and 36 mg each of European elder flower, verbena, sorrel, and cowslip flower three times daily.