1. something that is to happen or has happened to a particular person or thing; lot or fortune. 2. the predetermined, usu. inevitable, course of events. 3. the power or agency that determines the course of events.
Alternating between ibuprofen and acetaminophen every 2 hours because you have to wait 4 hours for each of them to take a second dose of the same thing. So instead you take a dose of Acetaminophen now, then Ibuprofen in 2 hours and back to Acetaminophen 2 hours later as needed.
For mild pain, the guidelines call for clinicians to prescribe 200 to 400 mg ibuprofen to be taken every 4 to 6 hours as needed. For mild to moderate pain, the guidelines call for 400 to 600 mg ibuprofen every 6 hours for 24 hours, followed by 400 mg ibuprofen every 4 to 6 hours as needed.