Experts warn herbal remedy butterbur can cause liver damage

Most of us see herbal remedies as a safe way to medicate, with few side effects.
But if they contain an unlicensed ingredient called butterbur, they could cause serious liver damage or even organ failure, experts have warned.
The Medicines and Healthcare products Regulatory Agency (MHRA) has urged British herbal shops to remove products containing butterbur - also called Petasites hybridus - from their shelves.
Butterbur is normally used to treat migraines, but it contains pyrrolizidine alkaloids, which studies have shown can cause serious liver damage and organ failure. Currently, no products containing the ingredient have been sanctioned for use in Britain under the Traditional Herbal Registration Scheme. Several other European countries have also banned it.
However, the MHRA said products containing butterbur are currently being marketed in the UK. And while no adverse reactions to it have been reported here, cases of liver toxicity have been reported elsewhere in Europe.

Source  - Daily Mail

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