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Viagra Precautions and Warnings

Some Viagra Precautions and Warnings

Here are some precautions and warnings to be aware of when taking Viagra:
 
  • There are certain medications that Viagra can interact with, including alpha blockers (see Viagra Drug Interactions).
     
  • If you have a heart or blood vessel disease (cardiovascular disease) or significant heart disease risk factors, there is an increased chance of serious side effects while taking Viagra. In rare cases, problems involving the heart, brain, and blood vessels are seen in people on Viagra. These problems sometimes include serious side effects, such as a heart attack, stroke, or sudden death. If you experience any symptoms during sexual activity, you should stop any further activity and talk to your healthcare provider (see Viagra Side Effects for more information).
     
  • In people taking Viagra or other PDE5 inhibitors, there have been rare cases of a condition called non-arteritic anterior ischemic optic neuropathy (NAION). This condition can lead to sudden loss of vision in one or both eyes. If you experience any loss of vision while on Viagra, contact your healthcare provider immediately (see Viagra and Blindness for more information).
     
  • The FDA considers Viagra a pregnancy Category B medicine, meaning that while the drug has not been studied in pregnant women, it showed no negative effects on unborn babies in previous animal studies. However, Viagra is not licensed for use in female patients.
     
  • In rare cases, people on Viagra can experience a prolonged erection, which in some cases can be painful. If you experience an erection for longer than four hours while taking Viagra, contact your healthcare provider immediately.

 

  • There have been cases of a sudden decrease in hearing or loss of hearing in people taking Viagra. If you notice this problem, stop taking Viagra and contact your healthcare provider immediately.

 

  • Viagra does not provide any protection against sexually transmitted diseases (STDs).
     
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