No, flexeril is a muscle relaxant. The drug name is cyclobenzaprine. Ibuprofen is a non-steroidal anti-inflammatory pain medicine. You can safely take a pain reliever and a muscle relaxant together. They work together to help reduce your discomfort.
This force exerted by air molecules or what is called as Atmospheric pressure is measured by barometer. At sea level the amount of pressure exerted by the atmosphere is about 14.7 pounds/square inch. This means at sea level an object experiences 14.7 pounds of pressure pushing against every square inch of object. When heat energy is added to molecules, they begin to move rapidly. This causes the molecules to exert increased pressure as they bump into the objects around them.
If you will recall, the pressure of the atmosphere may be measured in pounds per square inch (psi) or in atmospheres (atm). There are 14.7 pounds of air on every square inch at sea level, or 1 atmosphere. Again, the pressure is caused by billions of moving molecules bombarding each square inch.