Ibuprofen should not be taken by anyone who has kidney issues, high blood pressure, stomach ulcers and, in some cases, asthma ...

Ibuprofen is a non-steroidal anti-inflammatory drug (NSAID) available both over-the-counter and, in greater strength, by prescription. It aims to relieve pain in a variety of cases, including ...

So, if you took 600 mg four times a day (say, at 8 a.m., noon, 4 p.m., and 8 p.m.), the ibuprofen level in your body would not get below half the maximum during the day.

Ibuprofen (Advil or Motrin), naproxen (Aleve) and aspirin (Bayer or Ecotrin) are common pain relievers that belong to a class of medication called non-steroidal anti-inflammatory drugs (NSAIDs).

Ibuprofen belongs to a class of drugs known as nonsteroidal anti-inflammatory drugs, or NSAIDs, which reduce pain and inflammation by blocking the activity of certain enzymes, Dr. Tsourounis said.

Ibuprofen, by comparison, works faster than naproxen. However, because ibuprofen’s effects wear off quicker, it needs to be taken more frequently throughout the day, she says.