What are the side effects of bissap juice?

Hibiscus may cause blood pressure to drop. It has also been linked to dermatitis, headache, nausea, and ringing in the ear. Avoid hibiscus if you are allergic or sensitive to it or members of the Malvaceae plant family. Use with caution if you have low or high blood pressure. Do not use if you are pregnant or nursing as it may be unsafe for you and your baby. Hibiscus tea may interfere with the effectiveness of some anti-malaria drugs. It can also interact with many other drugs including some for diabetes and high blood pressure. Tell your doctor about any supplements you're taking, even if they're natural. That way, your doctor can check on any potential side effects or interactions with any medications.