Ibuprofen is a non-steroidal drug that is mainly used for the treatment of fever caused by colds and for the relief of various aches and pains. The usage of ibuprofen for children under 12 years of age is required based on kilograms of body weight, and the dosage for adults over 12 years of age and adults is 15-20 milliliters per oral dose. When used to reduce fever at intervals of more than 4-6 hours, the oral dose can be repeated. Because NSAIDs have significant gastrointestinal tract irritation, they should be taken orally after meals. So adults fever oral 20ml ibuprofen has no effect, in the range of the normal dose.