Dentist told me today to take 600mg advil (ibuprofen) every four hours until my root canal on monday. is this safe?

For most people: Is your kidney function normal? Have you ever had stomach bleeding? Do you take aspirin? Other meds? Probably your pain control will be just as good at twice a day.

Advil (ibuprofen): This is safe as it is a short duration treatment, unless you have renal insufficiency (kidney function reduction) or significant acid reflux (GERD) or esophagitis.

Advil (ibuprofen): Advil (ibuprofen) is a safe and effective medication for most people. You can cut this back if your pain is not too bad.