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Viagra may be effective against Alzheimer's disease

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Viagra may be effective against Alzheimer's disease, according to a study.

Viagra effective against Alzheimer's?

What if the famous blue pill that many men take to boost their sex life had a much greater effect than expected? American researchers have analysed data from over 7 million patients. Among them, those who used Viagra had a 69% lower risk of developing Alzheimer's disease. Recently, a nasal spray has brought much hope in the fight against this scourge.

"Sildenafil, which has been shown to significantly improve cognition and memory in preclinical models, has been touted as the best drug candidate," as Dr Feixiong Cheng, one of the Cleveland Institute's researchers, reports for the Guardian.

To be taken with a grain of salt

The scientist nevertheless attests that there is currently no "causal relationship" between taking sildenafil and Alzheimer's disease. Tests on women are also planned to verify this finding.

Meanwhile, Dr Ivan Koychev of Oxford University said the results were an "exciting development (...) because it points to a specific drug, offering new possibilities for treating Alzheimer's disease". To confirm this theory, however, larger-scale tests are needed.

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