Health Canada has suspended the licence of Filix Mas, a homeopathic product, because it contains the ingredient male fern (Dryopteris filix-mas). Safety information has raised potential concerns regarding effects of the specific ingredient at higher doses, and as such consumers should stop using the affected product immediately as it may pose a serious health risk. On April 2, 2015, Health Canada suspended the licences of two natural health products containing male fern. The product affect is Filix Mas (DIN-HM 80018123).