Merrill is available as ibuprofen suspension drops and ibuprofen suspension. Its efficacy is mainly to inhibit the synthesis of prostaglandins, and its action is mainly antipyretic, analgesic, anti-inflammatory and so on. 1. Efficacy: the active ingredient of these two dosage forms is ibuprofen, which is a non-steroidal anti-inflammatory drug, and the mechanism of action is to inhibit both the synthesis of prostaglandin E2 and the release of cytokines such as tumor necrosis factor-A. 2 effect: play a role in reducing high fever, because it can inhibit the hypothalamic cyclooxygenase, reduce the synthesis of prostaglandins, increase the process of heat dissipation, so as to achieve the effect of antipyretic. As well as for children with common cold or flu fever and other symptoms, can be used as antipyretic treatment. It also helps to relieve mild to moderate pain in children, such as headache, nerve pain, toothache, muscle aches and pains. 3. Adverse reactions: can irritate the gastric mucosa, resulting in nausea, vomiting, heartburn and other adverse reactions, so need to be used under medical supervision, avoid self-medication. 4. Contraindications: a history of allergy to non-steroidal anti-inflammatory drugs, perioperative coronary artery bypass grafting, gastrointestinal bleeding perforated ulcers can not be used. For the use of this drug, should be used in accordance with medical advice, do not use blindly.