On Thursday, the regulator revealed information about the drugs, saying that Apotex has done additional safety tests on seven of its products: high blood pressure treatments candesartan and enalapril; the immunosuppressant mycophenolate mofetil; the antihistamine olopatadine; lansoprazole, used to treat gastroesophageal reflux disease; entecavir, an antiviral; and linezolid, an antibiotic.