 <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] ine is an opioid cough suppressant (antitussive) that affects a certain part of the brain, reducing the urge to cough.This medication is not usually used for ongoing coughs from smoking, asthma, other long-term breathing problems (such as emphysema), or for coughs with a lot of mucus, unless directed by your doctor.Opioid cough suppressants should not be used by children younger than 18 years. Children are at higher risk for serious (even fatal) side effects, especially breathing problems. Talk with the doctor about the risks and benefits of this medication.Cough-and-cold products do not cure colds. Cough due to a common cold often does not need to be treated with medicine. Ask your doctor or pharmacist about other ways to relieve cough and cold symptoms, such as drinking enough fluids, using a humidifier, or saline nose drops/spray. How to use Mar-Cof CG Take this medication by mouth with or without food as directed by your doctor, usually every 4 to 6 hours as needed with a full glass of water (8 ounces or 240 milliliters). This medication can be taken with food if stomach upset occurs. Drink plenty of fluids while you are using this medication unless </s>