Viagra serendipity

Viagra serendipity
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  • Pfizer´s researches were experimenting with the PDE5 protein to treat cardio-vascular problems.
  • Researches were ready to test the drug in animals, the results were promising, for the did not have any side-effects.
  • Wow! there are other uses for this drug!
  • The drug was tested on humans, but when they tested the drug they were immediately embarrassed and they lay face down on hospital beds.
  • Once the nurses found out that the patients lay face down was because they had an erection, they reported it to the researches and they discovered that their drug was treating enctile disfunction they patentes the drug for said purpose.
  • There were other positive side effects to viagra, they were isolated to treat arthritis and heart conditions.
  • Now a days, viagra is used to treat erectile dysfunction patients.
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