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.
Report Abuse. Ibuprofen (motrin) will take aproximatly 15-20 minutes to take effect. It is also very unsafe to take more than 800 mg every 12 hrs. Mortin is very rough on the GI tract and specifically the stomach.Take it with food or milk. If the mortin isnt working it may be time to see a doctor.