Meaning of OD, TDS, and BD in a Doctor’s Prescription?

Answer: In a doctor’s prescription, you might see terms like OD, TDS, and BD. These are short forms used by doctors to tell you how often to take your medicine.

Here’s what they mean:

OD: Once a Day

• OD stands for “Once Daily.” This means you should take the medicine once every day. It’s used for medicines that work for a long time and need to be taken regularly.

TDS: Three Times a Day

• TDS stands for “Ter Die Sumendum,” which is Latin and means “take three times a day.” If your prescription says TDS, you should take your medicine three times during the day, usually at equal intervals.

BD: Twice a Day

• BD stands for “Bis in Die,” which is Latin for “twice a day.” This tells you to take your medicine two times a day, often once in the morning and once in the evening.

Understanding these terms on a prescription is key to taking your medicine correctly. OD means once a day, TDS means three times a day, and BD means twice a day. Always follow the dosage instructions on your prescription for the best and safest results.