Share your knowledge and experiences with any of the 10 most-prescribed drugs for chronic conditions in California, which are Amlodipine (Norvasc), Atorvastatin (Lipitor), Hydrochlorothiazide (Microzide, Aquazide H), Levothyroxine (Synthroid), Lisinopril (Prinivil, Zestril), Losartan (Cozaar), Metformin (Glucophage), Metoprolol, Omeprazole (Prilosec), and Simvastatin (Zocor).