Reporting side effects

You can report any side effect or adverse reaction to a herbal medicine using the Yellow Card Scheme run by the Medicines & Healthcare products Regulatory Agency (MHRA).

This can help theMHRA identify new side effects or risks associated with medicines, includingherbal remedies.

You should report adverse reactions or side effects if:

  • you suspect the side effect or adverse reaction was caused by a conventional medicine or herbal medicine you were taking
  • the side effect occurs when you're taking more than one medicine or herbal medicine

It's important to include as much detail as possible, particularly any brand name or manufacturer's details relating to the herbal medicine.

In the past,Yellow Cardreports have been used to identify interactions between St John's wort and other medicines, and to highlight the use of dangerous substances such asmercury, lead and arsenicin unlicensed Ayurvedic and traditional Chinese medicines.

Content supplied by the NHS Website

Medically Reviewed by a doctor on 21 Dec 2018