Oo look, another good article on medicines,

https://www.bbc.co.uk/news/uk-politics-eu-referendum-36599417

and a whole discussion including research, regulations, new medicines, and new medical devices

https://www.bbc.co.uk/news/av/uk-politics-43118667/chris-morris-explores-how-brexit-could-affect-medicines-and-medical-research

Other BBC bits and pieces on these topics

https://www.bbc.co.uk/news/uk-scotland-scotland-politics-45727317