MOTRIN ® works by targeting pain precisely where you want it the most. It’s effective for mild to moderate pain, pain due to inflammation and for reducing fever. Get information about pain and fever relief medicine from MOTRIN® including MOTRIN® IB, MOTRIN® PM, Children’s MOTRIN® or Infants’ MOTRIN®. Learn how to take ibuprofen (Motrin, Advil, Nuprin, and generics) safely to treat back pain and what to expect from this OTC or prescribed treatment. Motrin is used to reduce fever and treat pain or inflammation caused by headache, toothaches, back pain etc. Learn about side effects, interactions and indications. Ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID). It works by reducing hormones that cause inflammation and pain in the body. Ibuprofen is used to reduce fever and treat pain or inflammation caused by many conditions such as headache, toothache, back pain, arthritis, menstrual cramps, or minor injury. Every day, an estimated 30 million people worldwide take a non-steroidal anti-inflammatory medication, or NSAID. 1. These versatile medications, available in over-the-counter and prescription strength, treat both pain and inflammation. Ibuprofen is a medicine called a non-steroidal anti-inflammatory drug. It is also known as 'an NSAID'. Speak with a doctor before taking ibuprofen if you have ever had a bad reaction to any other anti-inflammatory painkiller. They see no injuries or anythign out of the norm.Occassionaly, my back gets inflammed and I take and aleve and this usually solves the problem for 36 hours or so. Motrin IB is used to reduce fever and treat pain or inflammation caused by many conditions such as headache, toothache, back pain, arthritis, Use this dosing chart to find out how many MOTRIN ® IB or MOTRIN ® PM caplets to take, and how often you can take them.