Does taking oseltamivir phosphate granules cause drowsiness?

After taking oseltamivir phosphate granules, patients may experience drowsiness. This drowsiness is usually considered a common adverse reaction during medication use, but it is not a specific symptom. Oseltamivir phosphate granules are antiviral medications primarily used for the treatment of influenza A and B. After administration, the drug may regulate the thermoregulatory center of the central nervous system and inhibit prostaglandin synthesis, thereby achieving antipyretic and anti-inflammatory effects. During this process, patients may experience symptoms such as physical fatigue, muscle pain, headache, and drowsiness. These symptoms are generally mild and may disappear within 1 to 2 days after taking the medication. To avoid impacts on daily life, it is recommended to consult a doctor before using oseltamivir phosphate granules and strictly follow medical instructions for administration. If severe drowsiness or other discomfort occurs, medical attention should be sought promptly, and discontinuation or substitution of the drug should be considered.