Viagra — the most outstanding of the drugs to treat erectile dysfunction.
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Viagra side effects
 
Viagra drug is always at hand if you need it but of course, there are also side effects that make other men not comfortable of using it. The following are those that a person can encounter in taking care of Viagra.

1. Viagra has an effect on PDE6, which the retina uses in the cone cells. A lot of men who take Viagra notice changes in their color vision. The ways they see green and blue color are a little different than usual. They also sometimes have bluish tinge in their vision for several hours. Pilots are strictly forbidden to take Viagra within 12 hours of flight.
2. The use of Viagra may also end up with dependency on it. Men, younger men specifically, who take the drug not for physical reasons but for recreation have high tendencies of becoming unable to maintain erections without taking the drug.

 

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3. It can also cause headaches, and sometimes heart attacks. It is important to schedule a check up first to make sure taking the drug will not cause a problem by having a professional understand medical history. Viagra cannot be taken with some other type of medicines like nitroglycerin.
4. Men who make taking the drugs a usual may get long-lasting, painful erections. People who experience this are advised to visit a doctor immediately.