What does "qid" indicate for the frequency of medication administration?

"qid" is an abbreviation derived from the Latin phrase "quater in die," which translates to "four times a day." This term is commonly used in medical settings to specify how often a medication should be administered. When you see "qid" on a prescription or medication chart, it indicates that a patient should take the prescribed medication four times during the course of the day, which may be spread out at roughly equal intervals or as directed by a healthcare professional. Understanding this abbreviation is essential for proper medication management and ensures that patients receive their medications at the appropriate times to maintain therapeutic levels and effectiveness.