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More than 20 million men around the world use it regularly. One out of every five men over 40 has tried it. An average of nine Viagra pills are dispensed every second. Viagra is often the first treatment tried for erectile dysfunction — the inability to achieve or sustain an adequate erection for sexual activity. For most men with erectile problems, it works well and have few side effects. Viagra's effect starts in 30 minutes to 1 hour and lasts for about 4 hours.
Viagra increases levels of nitric oxide, a chemical produced by your body during sexual stimulation that causes blood vessels in the penis to relax and open. This allows you to achieve and maintain an erection. This medications don't automatically trigger an erection; sexual arousal is needed to start the whole process.
Viagra facts:
- Percentage of time Viagra use results in sex: 66%
- Percentage of Viagra users who have sex at least once after using the drug for a few weeks: 83%
- Number of times Pfizer says men should try Viagra before giving up: 8
- Viagra has already helped 16 million men in their erectile problem
- In every second, 9 Viagra tablets are dispensed around the world
- Viagra can work in as little as 14 - 30 minutes.
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