See the DrugPatentWatch profile for advil

Based on the information available, I can tell you that Advil, also known as ibuprofen, is a non-prescription, non-steroidal anti-inflammatory drug (NSAID) that is commonly used to relieve pain from various conditions, including headaches [1].

However, the specific time it takes for Advil to reduce headache pain can vary from person to person, depending on factors such as the severity of the headache, the dosage taken, and the individual's metabolism [2]. Generally, it is recommended to take Advil as soon as you feel a headache coming on, as it can start to work within 30 minutes to an hour after ingestion [3].

It's important to note that while Advil can help alleviate headache pain, it may not cure the underlying cause of the headache. If you experience frequent or severe headaches, it's recommended to speak with a healthcare professional for proper diagnosis and treatment [4].

In summary, while the exact time it takes for Advil to reduce headache pain can vary, it typically starts to work within 30 minutes to an hour after ingestion.

Sources:

1. <https://www.webmd.com/drugs/2/drug-169/ibuprofen-oral/details>
2. <https://www.healthline.com/health/headache/how-long-does-ibuprofen-take-to-work#how-long-it-takes-to-work>
3. <https://www.mayoclinic.org/diseases-conditions/headache/expert-answers/ibuprofen/faq-20058088>
4. <https://www.drugpatentwatch.com/ibuprofen>