Vivo Brand Management Inc. is recalling more natural health products promoted for sexual enhancement: Forta for Men Daily, Forta Xpload and Durazest For Men Volume. As in previous recalls , these products may contain an undeclared drug: sildenafil. Sildenafil is a prescription drug that should only be used under the supervision of a health-care practitioner and may pose serious health risks. Health Canada is in the process of suspending all affected product licences given the inclusion of prescription drug ingredients.