Posted April 3, 2015

Health Canada Suspends Sales of Male Fern Products

On April 2, 2015, Health Canada (the Canadian equivalent of the U.S. FDA) announced it has suspended the licenses of the natural health products containing the ingredient male fern (Dryopteris filix-max), due to concern over the safety of the ingredient when taken at higher doses. These products can no longer be sold in Canada.

In Canada, the two products can be identified by the following:

  • Paranil (Natures Formulae Health Products Ltd.), NPN: 80036362, Directions for Use: 537 milligrams per day taken for 7 days
  • W.-W (Herbes Pures J.B. Ltée), NPN: 80036362, Directions for Use: 2 grams per day taken once

Health Canada stated that that although male fern has traditionally been used to expel intestinal tapeworms at doses between 1 and 15.5 grams, taking this amount may cause adverse effects including liver damage, blindness and death.

Although these products do not appear to be available for sale in the U.S., there are other products containing male fern available in the U.S. through online retailers.

See Related Warnings:

Sexual Enhancement Supplement Recalled

CELLFOOD Recalled in Canada

Canada Advises Consumers Not To Use Adulterated Sleep Supplement

Health Canada Warns Consumers Not to Take Chaparral

To read Health Canada's statement, use the link below.