I just accidentally took a double dose of Atenolol = 200 mg. I m on a 100mg twice a day regime. I pre-arrange my meds and suppliments for an AM and PM dosage. That means I double dosed my Naproxen Sodium totalling 880 mg as well. I tried to throw it up but only the suppliments in the gel caps came out, not the Atenolol or Naproxen. What should I do?