What Is The Most Important Drug To Take After A

What is the most important drug to take after a heart attack one year ago. I have a one month lapse in my insurance and can't buy all. My doc is in surgery today and can't call me....I am out of everything! I take Clopidogrel 75 mg, atavastatin 40mg, asa low dose 81 mg, metoprolol 25 mg, bupropion 150 mg. Blood pressure and cholesterol levels are great. Just wondering if I should not take anything until I talk to my doc or at least get some for getting through the weekend. Thank you so much!