Gentian, Cautions)

• May cause nausea and vomiting if taken in large doses.
• Do not use if you have high blood pressure, gastric or duodenal ulcers or gastric irritation or inflammation.
• may interfere with absorption of iron salts; separate by at least 2 hours
• On rare occasions, headaches may occur
• Owing to potential mutagenic activity and traditional use as an emmenagogue, it should not be taken during pregnancy, nursing, or by young children
• Do not use in acute gastrointestinal inflammation