One of the most talked about side-effect of PDE5 (Phosphodiesterase Type 5) inhibitors like Levitra is that it might lead to ocular or vision problems for the person using them According to the maker of Viagra, 3% of men taking doses of 25-50 milligrams a day may experience drug vision problems. The number is of course much higher for men taking an average of 100 mg a day (11%) and 200 mg a day (50%).
However, most users buy the 25mg pills and only the mentally unstable would use more than 8 25mg pills a day to get a 50% chance of damaging his vision. If Viagra’s half life is 4 to 5 hours, why would someone take more than one pill a day? That amount of time is enough for a successful and satisfying copulation. Only the members of the alternative cultures and drug junkies would dare to take more than 100 mg to make their partners happy or satisfy their outrageous curiosities.
News reports of vision problems are rare. The media would definitely sensationalize any news that deals with the blue-diamond pill. If someone reports that his vision became poor because of taking in Sildenafil Citrate, reporters would focus on that item without even considering whether the victim is taking in other medicines, the final diagnosis of the doctor, the possibility that he might be suffering from retinal problems, other medicines taken by the patient, and other factors that affect someone’s vision.
Also, there are no other parallel researches in other countries and other groups of people. The warning issued by Pfizer may seem alarming because 3% is significant (30,000 is 3% of one million). If you want to enjoy more than four hours of copulation, you might as well buy Cialis which has a 12.5 hours half life longer than Viagra. This may well remove your fear but still enjoy your night.
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