How long does side effects last of Naproxen?

The side effects of Naproxen can vary in duration depending on the individual and the specific side effect experienced. Common side effects, such as gastrointestinal discomfort, may last a few hours to a couple of days after taking the medication. More serious side effects, like allergic reactions or cardiovascular issues, may require immediate medical attention and can persist until the drug is cleared from the body, which typically takes a few days. It's important to consult a healthcare professional if side effects are severe or prolonged.