The U.S. Food and Drug Administration announced that the dietary supplement manufacturer, Midwest Wholesale, has issued a voluntary recall of its male enhancement dietary supplements Boost Ultra, XZone Gold, Sexy Monkey, Triple MiracleZen Platinum, Magic for Men, “New” Extenze, and New XZen Platinum after undeclared ingredients were found in the products.

An FDA analysis of the listed supplements discovered the ingredients, Sildenafil and/or Tadalafil, two FDA-approved substances that are often found in prescription drugs used to treat erectile dysfunction (ED) in men.

“Recently, dietary supplements have seen a surge in scrutiny as a number of negative side effects are being associated with popular supplements on the market,” commented Megan McBride, a product liability lawyer with the Levin, Papantonio law firm.

Men suffering from diabetes, heart disease, and high cholesterol are often prescribed drugs containing nitrates, which can have dangerous reactions with Sildenafil and Tadalafil.

The recalled dietary supplements have been marketed as a sexual enhancement supplement for men and can be found packaged in 3, 6, and 12-count bottles; 30-count tablet boxes; and 1-count blister packs. Midwest Wholesale distributed the products to 20 retail locations across the country from August 1, 2013 to October 22, 2013.

Consumers are urged to cease all use of the listed Midwest Wholesale dietary supplements and products should be returned to the location of purchase or Midwest Wholesale directly. Anyone who has experienced negative side effects from one of the recalled products should contact a healthcare professional immediately.

Over the past several months, The FDA has issued recalls on several popular dietary supplement brands, including Oxyphen, Phentalene, Phen FX, Red Vipers, which have been associated with causing high blood pressure and cardiovascular problems; OxyElite Pro, which has been linked to liver failure and the development of hepatitis; and Dr. Mao Slimming Capsules, which were recalled after a chemical analysis by the FDA found the supplement contained sibutramine, an ingredient that was classified as a controlled substance in October 2010.

Krysta is a writer and researcher with Ring of Fire. Follow her on Twitter @KrystaLoera.