 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST] MD interaction checker Check InteractionThe overdose of Briellyn Oral: If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center. Symptoms of overdose may include severe nausea and vomiting, sudden/unusual vaginal bleeding.  Notes Do not share this medication with others. Regular complete physical exams which include lab and/or medical tests (such as blood pressure, breast exam, pelvic exam, Pap smear) should be done while you are taking this medication. Follow your doctor's instructions for examining your breasts, and report any lumps right away. Keep all medical and lab appointments. Consult your doctor for more details.  Missed Dose Refer to the product package information for advice on missed doses. You may need to use back-up birth control (such as condoms, spermicide) to prevent pregnancy. Ask your doctor or pharmacist if you have any questions. If you often forget to take your pills as directed, contact your doctor to discuss switching to another form of birth control.  Storage Store at room temperature away from light and </s>