What does the abbreviation 'tid' represent in medical prescriptions?

The abbreviation 'tid' stands for "ter in die," which is a Latin term meaning "three times a day." In medical prescriptions, it indicates the frequency with which a medication should be taken. When a patient receives a prescription with 'tid,' they should understand that they need to take the medication three times throughout the day, typically spaced evenly apart to maintain consistent therapeutic levels in their system. This dosage schedule helps ensure the medication is effective and can help in managing a patient's condition appropriately.