Ibuprofen has side effects. Find out what they are, when theyre most likely to happen, and how to avoid them. Ibuprofen, sold under the brand names Advil, Motrin, and Ibuprin, is a medication used to relieve pain, swelling andor inflammation. Explains the medication naproxen (Aleve, Naprosyn, Anaprox, Naprelan) a drug used for the management of mild to moderate pain, fever, and inflammation. Naproxen (Aleve) medication works by blocking the production of prostaglandins, substances in the body that play a role in pain and inflammation. Ibuprofen 600mg can cause significant side effects associated with the gastrointestinal (GI) tract. These effects include black, bloody or tarry stools. Ibuprofen is an medicine used to manage mild to moderate pain, fever, inflammation, menstrual cramps, and types of arthritis. Common side effects are drowsiness. Naproxen, sold under the brand names Aleve and Naprosyn among others, is a nonsteroidal antiinflammatory drug (NSAID) used to treat pain, menstrual cramps. Aleve is a nonsteroidal antiinflammatory drug (NSAID) used to treat pain and inflammation. Learn about side effects, interactions and indications. Pictures of Lodine (Etodolac), drug imprint information, side effects for the patient. Pictures of Motrin (Ibuprofen), drug imprint information, side effects for the patient. Learn about the potential side effects of Aleve (naproxen). Includes common and rare side effects information for consumers and healthcare professionals. com, you may experience unwanted side effects to your nervous system. This occurs because Aleve blocks chemical signals that are active.