What does 'q2h' stand for in a medical prescription?

The notation 'q2h' in a medical prescription indicates that a medication should be administered every 2 hours. The prefix 'q' stands for 'quaque,' which is a Latin word meaning 'every,' and '2h' specifies the interval of 2 hours. This is a standard abbreviation used in the medical field to ensure clarity regarding the timing of medication dosages. Understanding such abbreviations is crucial because accurate timing can significantly affect the efficacy of the medication and the management of the patient's condition.