If you’re allergic to ragweed and other plants in the Asteraceae/Compositae family, then wormwood may cause an allergic reaction.
If you have porphyria (a group of disorders that result from a buildup of natural chemicals that produce porphyrin in your body), then you should know that the thujone present in wormwood oil might increase your body’s production of chemicals called porphyrins, which could make your porphyria worse.
If you have epilepsy or any other seizure disorder, speak with your doctor before using this herb. The thujone in wormwood cause cause seizures, especially in people who have a tendency toward seizures.
Wormwood is not recommended for people with kidney disorders. The oil might cause kidney failure. If you have kidney concerns, don’t take this herb before talking with your doctor.
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utrition/wormwood/