As a medical holder, also on statins I can categorically say that the above is incorrect. Most medical professionals including an Oxford educated surgeon of my acquaintance believe that statins are of benefit. There are side effects in some cases then take medical advice. Finally, do not take medical advice from anonymous posters on prune (including me) but talk to your GP and subsequently tell your AME at your medical. There will not necessarily be the need for a cardiac assessment but that would be dependent on other factors. As for your vet’s opinion I assume that you are joking.