 <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]  similar ingredients (see also Drug Interactions section). Ask the 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 Sudafed 24-HOUR If you are taking the over-the-counter product to self-treat, read all directions on the product package before taking this medication. If you have any questions, ask your doctor or pharmacist. If your doctor has prescribed this medication, take it as directed. Take this medication by mouth with or without food, usually every 12 or 24 hours, depending on the product or as directed by your doctor or the product package. Do not take more than 240 milligrams in a day. Dosage is based on your age, medical condition, and response to treatment. Do not increase your dose or take this drug more often than directed. Do not take more of this medication than recommended for your age. If you are using the suspension (liquid), shake the bottle well before each dose. Use a medication-measuring device or spoon to carefully measure the dose. Do not use a household spoon because you may not get the correct dose. Take the capsules or tablets with a full glass of water. </s>