I don’t think it’s recommended to take Advil and Tylenol together for more than a few days.
All I can tell you is that neither one, no matter how strong the dosage, touched my sciatica in any way. A specialist prescribed some other type of pain medication—all I know is that it was strong, but not oxytocin—and the problem was solved. (I didn’t even have to use the entire prescription. After controlling the pain for a few days, I eased off the meds and was still fine.)
Ok, I totally misspelled oxycontin. Actually, auto-correct did it, but whatever.