https://www.healthycanadians.gc.ca/recall-alert-rappel-avis/hc-sc/2010/14078a-fra.php https://www.healthycanadians.gc.ca/recall-alert-rappel-avis/hc-sc/2010/14612a-fra.php 2010 Canada French English Cardiotoxicity saquinavir hiv protease inhibitors drug therapy, combination ritonavir adult hiv infections long qt syndrome PR INTERVAL PROLONGED saquinavir pharmacovigilance note Saquinavir Monomethanesulfonate