The generic name of the drug for Merrill is Ibuprofen Suspension, and the generic name of the drug for Tylenol is Acetaminophen Oral Suspension. It is not recommended to take Acetaminophen Oral Suspension if the fever does not go down in 2 hours of taking Ibuprofen Suspension, and Acetaminophen Oral Suspension can be taken 4 hours later, but it is not recommended. Ibuprofen Suspension and Acetaminophen Oral Suspension are both non-steroidal anti-inflammatory drugs, and both can relieve fever and analgesia to treat pediatric fever. After oral ibuprofen suspension about 2 hours after the blood concentration reaches its peak, if the fever does not go down at this time, to wait for 4 hours after the ibuprofen suspension metabolized in the body 3/4, at this time, if the body temperature continues to be high, you can then take acetaminophen oral suspension to reduce fever. However, this way of taking medication may increase the burden on the liver and kidneys, and it is recommended that ibuprofen suspension continue to be taken 4-6 hours later, and no more than 4 times in 24 hours. Children taking fever-reducing drugs after the temperature has not dropped, it is best to go to the hospital in a timely manner, follow the doctor’s instructions for medication.