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Results 1 - 1 of 1 for Narrow penis
  1. Macitentan and Tadalafil 
    ... a natural substance that causes blood vessels to narrow and prevents normal blood flow in people who ... any condition that affects the shape of the penis; blood circulation problems; blood cell problems such as ...
    https://medlineplus.gov/druginfo/meds/a624029.html - Drugs and Supplements