Side Effects and Cautions

• Uncooked or unripe elderberries are toxic and can cause nausea, vomiting, or severe diarrhea. Only the blue/black berries of elder are edible.
• Because of elder flower's possible diuretic effects, use caution if taking it with drugs that increase urination.
• Tell your health care providers about any complementary and alternative practices you use. Give them a full picture of what you do to manage your health. This helps to ensure coordinated and safe care.