 <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]  is a suspension, shake the bottle well before each dose. The dosage is based on your age, medical condition, and response to treatment. Do not increase your dose, take it more often, or use it for a longer time than directed. Do not give children medicines labeled only for adults. Tell your doctor if your condition lasts for more than 1 week, if it gets worse, or if it occurs with a headache that doesn't go away, rash, or fever lasting more than 3 days. These may be symptoms of a serious medical problem and should be checked by a doctor.The side effects of Head Congestion-Mucus Oral: See also Warning section. Upset stomach, nausea, dizziness, trouble sleeping, or nervousness may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly. Tell your doctor right away if you have any serious side effects, including: mental/mood changes (such as confusion, hallucinations), fast/irregular heartbeat, problems urinating. A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue </s>