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Symptom Checker

Step 4: Read and complete the decision guide to learn more about your symptoms.

Treatment of Impotence

Some men cannot take PDE5 drugs because of underlying medical problems, or because of possible severe drug reactions.

Common reasons that men cannot use PDE5 drugs include

  • severe heart disease

  • regular use of heart medications such as nitroglycerin or isosorbide

  • severe high blood pressure that is either not controlled or that requires several medications to keep under control.

  • regular use of an alpha blocker medication such as tamsulosin (Flomax), doxazosin (Cardura), terazosin (Hytrin), prazosin (Minipress), or alfuzosin (Uroxatral).

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