Tamiflu® is a prescription medication and may cause the following common side effects, which are usually mild and often occur during the initial adjustment period:
• Nausea and vomiting
• Headache and dizziness
• Mild discomfort such as insomnia
These symptoms usually occur at the beginning of treatment. As the body adjusts to the medication, symptoms are relieved in most users.
Rare but serious side effects may involve delirium, abnormal behaviour, severe skin reactions, or allergic reactions. If side effects occur, especially if the symptoms are severe or persistent, you should consult a doctor.