TadalafilSide effects of the big three pharmaceutical ED prescriptions

Viagra, Cialis, Levitra

Viagra (sildenafil)

This pharmaceutical, like the other two, works by inhibiting the enzymes that constrict the circulatory system. In most men Viagra works within an hour, lasting for about four hours. On of the problems with Viagra is that you can't take it after eating dinner as it is easily blocked by food in the stomach. And, of course, if on a date and you take it before dinner you will be sitting there with a flushed face. Other common side-effects include headache, visual disturbances, blocked nose, (making sleep after Viagra sex difficult) flushed face, indigestion, palpitations - and dizziness. So don't get out of bed too quickly. And, don't take too much as blue vision occurs at higher doses. Viagra is quite dangerous when taken with certain heart drugs. It also interacts with several medications. Do not drink grapefruit juice on day of use.

At the beginning of April 2005, a report from the University of Minnesota suggested that a small group of men have suffered blindness as a result of Viagra use. It was claimed that the drug may rarely cause a serious eye condition called ‘non-arteritic ischaemic optic atrophy.’ In 2007, it became apparent that about half a dozen British men have suffered similar eye problems. If you are taking Viagra, you should ask your doctor to keep you informed of any further research on this development.

Cialis (tadalafil)

Works in the same way as Viagra. Side-effects similar to those of Viagra, but because it is a variation on phosphodiesterase inhibitors that is held by the body in skeletal muscles it commonly causes back and general muscle pain. Interactions with other drugs and with grapefruit juice are similar to those of Viagra, but also clashes with the antibiotic clarithromycin and the sedative phenobarbitone. Cialis is very similar in structure to Viagra, but so far (2007) there have been no reports of blindness on Cialis.

Levitra (vardenafil)

Works in same way. Side-effects and interactions are similar to those of Viagra. Not as long-lasting as Cialis. So far, there have been no reports of blindness.

 

 

 

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