Oseltamivir has been shown to cause some side effects. Talk to your health care provider if these adverse reactions do not go away within a few days.
Common side effects reported while taking oseltamivir include:
- Nausea
- Vomiting
- Stomach pain
- Headache
- Diarrhea
This is not a complete list of adverse effects – though these are among the most common. Seek medical attention right away if you experience symptoms such as swelling, rash, difficulty breathing, seizures, or skin irritation.
As with all prescription medication, be sure to inform your health care provider about any medical conditions you have been previously diagnosed with, and any medication/ supplements you are currently taking before starting treatment with oseltamivir. Oseltamivir can interact with other forms of medication and substances, causing potentially serious side effects. In addition, let your doctor know if you are pregnant or plan on becoming pregnant before starting treatment with this medication.