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The product recalls were issued when it was discovered that the supplements contained undeclared ingredients that could pose health risks to some people taking them. According to the notices, laboratory analysis found that all three pills are tainted with tadalafil, while the Mac Daddy Purple Capsules and Red Capsules also contain sildenafil. According to the FDA, tadalafil and sildenafil are ingredients known as phosphodiesterase (PDE-5) inhibitors found in products approved by the agency to treat male erectile dysfunction. However, because this substance is not approved for use in the three recalled products, its presence makes them unapproved drugs for which safety and efficacy have not been established. RELATED: For more health news sent right to your inbox, sign up for our daily newsletter. In both notices, the FDA warns that “serious health risks” could result from taking the unapproved capsules. “PDE-5 inhibitors may interact with nitrates found in some prescription drugs (such as nitroglycerin) lowering blood pressure to dangerous levels that may be life-threatening,” the agency states. “Consumers with diabetes, high blood pressure, or heart disease often take nitrates.“ae0fcc31ae342fd3a1346ebb1f342fcb Fortunately, neither company has received any reports of adverse reactions from taking the male enhancement supplements to date. Customers with questions about the Mac Daddy Red and Purple Capsules recall can contact Josh Green at 845-459-0632 Monday through Thursday between 10:00 a.m. to 4:00 p.m. EST. Anyone with questions about The Red Pill recall can contact Your Favorite Shop by calling 551-255-0862 or e-mailing [email protected] weekdays from 9 a.m. to 4 p.m. EST. RELATED: If You Have This Aspirin at Home, Throw It Out, Authorities Say.