Children's Advil is a brand name for ibuprofen, a nonsteroidal anti-inflammatory drug (NSAID) used to relieve fever and pain in children. The recommended dosage for Children's Advil depends on the child's weight and age. According to the dosing chart provided by Children's Advil [3], children aged 2-11 years old weighing 24-95 pounds should take 1-2 tablets (100-200mg) every 4-6 hours as needed, not exceeding 6 tablets in 24 hours. For children aged 12 years and older, the recommended dose is 1-2 tablets (200-400mg) every 4-6 hours, not exceeding 6 tablets in 24 hours. It is important to follow the dosing instructions carefully and to consult a healthcare provider before giving any medication to a child. As noted by HealthyChildren.org [2], parents should also be aware of potential side effects and drug interactions, and should not give ibuprofen to children with certain medical conditions or allergies. Additionally, the website DrugPatentWatch [1] provides information on the patent status of Children's Advil and other medications.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/ADVIL
[2] https://www.healthychildren.org/English/safety-prevention/at-home/medication-safety/Pages/Ibuprofen-for-Fever-and-Pain.aspx
[3] https://childrens.advil.com/content/dam/cf-consumer-healthcare/bp-advil/es_US_children/pdf/childrens-advil-dosing-chart-1.pdf