Does Viagra ward off Alzheimer’s disease? It’s too soon to say

Viagra could treat many conditions beyond erectile dysfunction

David Cole/Alamy

Anyone considering using Viagra as a treatment for impotence could be forgiven for thinking there is now another reason to go ahead with it. Some news headlines say that this class of drugs, known as PDE5 inhibitors, may protect people from developing Alzheimer’s disease.

It sounds like a medical news story that is too good to be true – and sadly, in this case, the headlines are probably premature.

The stories are based on a study that found taking drugs for erectile…

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