Special Precautions & Warnings:
Pregnancy and breast-feeding: Hibiscus is possibly unsafe when taken by mouth during pregnancy. There is some evidence that hibiscus might start menstruation and this could cause a miscarriage. There is not enough reliable information about the safety of taking hibiscus if you are breast-feeding. Stay on the safe side, and avoid use.
Diabetes: Hibiscus might decrease blood sugar levels. The dose of your diabetes medications might need to be adjusted by your healthcare provider.
Low blood pressure: Hibiscus might lower blood pressure. In theory, taking hibiscus might make blood pressure become too low in people with low blood pressure.
Surgery: Hibiscus might affect blood sugar levels, making blood sugar control difficult during and after surgery. Stop using hibiscus at least 2 weeks prior to a scheduled surgery.