`` Undeclared active ingredients '' in X-Rock for Men `` pose a threat , '' the company says . Tests conducted by the Food and Drug Administration found that the supplement X-Rock contained sildenafil -- an approved drug to treat erectile dysfunction -- and related substance , hydroxythiohomosildenafil , the product 's manufacturer said in a statement annoucing the voluntary recall . The FDA has not yet approved any over-the-counter products containing undeclared ingredients. The product is billed as an `` organic '' supplement with `` no chemicals or steroids ''
`` Undeclared active ingredients '' in X-Rock for Men `` pose a threat , '' the company says . The FDA has not yet approved any over-the-counter products containing undeclared ingredients. The product is billed as an `` organic '' supplement with `` no chemicals or steroids ''