 <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] : beta blockers (such as metoprolol, atenolol), guanethidine, certain inhaled anesthetics (such as halothane), methyldopa, rolapitant, tricyclic antidepressants (such as amitriptyline, desipramine). Guaifenesin is available in both prescription and nonprescription products. Check the labels on all your medications carefully to make sure you are not taking more than one guaifenesin-containing product. Check the labels on all your medicines (such as cough-and-cold products, diet aids) because they may contain ingredients that could increase your heart rate or blood pressure. Ask your pharmacist about the safe use of those products. This medication may interfere with certain medical/lab tests (including urine 5-HIAA/VMA levels, brain scan for Parkinson's disease), possibly causing false test results. Make sure lab personnel and all your doctors know you use this drug. Does Tussi-Pres Pediatric interact with other drugs you are taking? Enter your medication into the WebMD interaction checker Check InteractionThe overdose of Tussi-Pres Pediatric Oral: If someone has overdosed and has serious symptoms such as passing </s>