 <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] 22. Canada residents can call a provincial poison control center.  Notes Do not share this medication with others. Lab and/or medical tests (such as blood counts, thyroid tests, virus levels, kidney/liver function, triglyceride levels, eye exams) should be done before you start using this medication and while you are using it. Keep all medical and lab appointments. Do not change brands of interferon without checking with your doctor or pharmacist. Other interferons may not have the same effects on your disease.  Missed Dose If you miss a dose, use it as soon as you remember during the same day or the next day. Use your next dose on the day you usually use it. If several days have passed since your missed dose, ask your doctor or pharmacist right away for a new dosing schedule.  Storage Store the pen in the refrigerator. Store the vials at room temperature away from light and moisture. Do not store in the bathroom. Each vial or pen can be used only once. Discard any unused portion. Keep all medications away from children and pets. After mixing, the medication may be stored in the refrigerator. Do not freeze. Use/discard the mixed medication within 24 hours. Do not flush </s>