The electromagnetic (EM) spectrum is the range of all types of EM radiation. Radiation is energy that travels and spreads out as it goes  the visible light that comes from a lamp in your house and the radio waves that come from a radio station are two types of electromagnetic radiation.
According to my doctor, 4 hours. You can switch them up. Take acetaminophen, (Tylenol), then wait 4 hours and take Ibuprofen, wait another 4 hours and take acetaminophen and sâ¦o on.
How long do I need to wait between each dosage of Ibuprofen, 200mg? How long do I need to wait between each 3 tablet dosage when each tablet is 200mg, before taking more? Also, waits the maximum I can take in a 24 hour period?