Naproxen and Blood Thinning: What You Need to Know

Naproxen (brand name Naprosyn) is a nonsteroidal anti-inflammatory drug (NSAID). NSAIDs are painkillers that reduce inflammation. While NSAIDs can cause side effects, such as stomach bleeding and kidney damage, they do not typically cause nosebleeds or thin the blood.

If you are experiencing nosebleeds or are concerned about the side effects of naproxen, you should talk to your doctor.