https://www.pnas.org/content/115/4/E715
If you want to read the full article head on over to PubMed, but its dense and heavily scientific, so maybe head straight to the discussion section of the paper.
Just 600mg daily for 14 days caused an almost 20% drop in testosterone levels. They demonstrated that repeated exposure past this point caused further drops in hormone levels. Like many of the drugs we have come to rely on, its only decades down the line we come to realise the negative and lasting impacts they can have.
This hits home particularly for those with little ones who will be using ibrufen based products for all sorts of things, repeatedly throughout their early lives.
*cumulative effects
Image credit google shopping
2019 01 02