In the context of a medical prescription, QID and BD are abbreviations used to indicate the frequency or timing of medication dosages:
QID: QID stands for "quater in die," which is Latin for "four times a day." When a medication is prescribed with QID, it means that the patient should take the medicine four times daily, typically at evenly spaced intervals throughout the day.
BD: BD stands for "bis in die," which is Latin for "twice a day." When a medication is prescribed with BD, it means that the patient should take the medicine two times daily, typically at regularly spaced intervals.
These abbreviations are often used by healthcare professionals to communicate the dosing schedule clearly and concisely on prescriptions. However, it's essential for patients to understand the instructions fully and follow them as directed by their healthcare provider to ensure safe and effective use of the medication. If there's any confusion or doubt regarding the dosage instructions, patients should always seek clarification from their doctor or pharmacist.