 <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] acist. Do not start, stop, or change the dosage of any medicines without your doctor's approval. Taking certain MAO inhibitors with this medication may cause a serious (possibly fatal) drug interaction. Avoid taking isocarboxazid, metaxalone, methylene blue, moclobemide, phenelzine, procarbazine, rasagiline, safinamide, selegiline, or tranylcypromine during treatment with this medication. Most MAO inhibitors should also not be taken for two weeks before treatment with this medication. Ask your doctor when to start or stop taking this medication. A product that may interact with this drug is: rolapitant. Guaifenesin and dextromethorphan are available in both prescription and nonprescription products. Check the labels of all your medications to make sure you are not taking more than one product containing guaifenesin or dextromethorphan. Guaifenesin may interfere with certain lab tests (such as urine levels of certain acids), possibly causing false test results. Make sure lab personnel and all your doctors know you use this drug. Does EXTRA ACTION Cough interact with other drugs you are taking? Enter your medication into </s>