Recalls & Warnings
ConsumerLab.com is keeping you informed with current product recalls and warnings.
Posted May 18, 2012
Caution with Butterbur Indicated by UK Warning
England's Medicines and Healthcare Products Regulatory Agency (MHRA) advised consumers in early 2012 not to take unlicensed butterbur (Petasites hybridus) herbal products due to potential health risks. The MHRA noted that butterbur contains pyrrolizidine alkaloids (PAs) which studies have shown can result in serious liver damage and organ failure. PAs have also been shown to lead to cancer in animals. Butterbur is most commonly used to treat migraine and hayfever.