Nutra Labs Inc. is voluntarily recalling lots sold by their firm of the male enhancement supplements Bull 1800 mg Capsules with the production date of 05/08/2016, and Chao Jimengnan 150 mg Tablets with Lot # 20151018 to the consumer level. FDA analysis found the products to be tainted with sildenafil, 0.026mg/capsule for Bull, and 70.46mg/tablet for Chao Jimengnan respectively. Sildenafil is the active pharmaceutical ingredient in an FDA approved product used for erectile dysfunction, making Bull capsules and Chao Jimengnan tablets unapproved new drugs.