The Food and Drug Administration (FDA) has warned against the following sexual enhancement supplements after they were found to contain hidden drug ingredients:

  • Libigrow XXX Treme
  • Night Man
  • Black King Kong
  • 72HP
  • Tibet Babao
  • Germany Niubian

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All of these products were found to contain undeclared sildenafil, the active ingredient in Viagra (Pfizer). Viagra is approved by the FDA for the treatment of erectile dysfunction (ED). Sildenafil use may interact with nitrates found in prescription drugs such as nitroglycerin and may lower blood pressure to dangerous levels. Patients with diabetes, high blood pressure, high cholesterol, or heart disease commonly take nitrates.

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