what does bd mean in medical terms

In medical terms, "bd" stands for "bis in die," a Latin phrase that means "twice a day." It is commonly used in medical prescriptions to indicate that a medication or treatment should be taken or administered two times a day, typically spaced about 12 hours apart. For example, if a prescription says "take 1 tablet bd," it means the patient should take one tablet twice daily. This abbreviation is widely used for dosing instructions but there is a movement towards clearer instructions to avoid possible confusion or errors.