when was ibuprofen invented

Ibuprofen was invented in the 1960s. A patent for ibuprofen was filed in 1961 by Stewart Adams and John Nicholson, researchers at Boots Pure Drug Company. Clinical trials took place in 1966, and it was launched as a prescription drug in the United Kingdom in 1969. It became available over-the-counter in the early 1980s due to its safety record.