What does tid stand for in medication frequency?

What does tid stand for in medication frequency?

• A. Three times a day
• B. Twice daily
• C. Once daily
• D. Four times a day

Answer: (A)

Tid means three doses in a 24-hour day. It comes from the Latin ter in die, meaning “three times in a day.” So a tid prescription is typically spaced about every 8 hours to provide even exposure. That’s why this option is correct. Other frequencies use different Latin abbreviations: twice daily is bid, once daily is often written qd, and four times daily is qid. Tid specifically corresponds to three times per day.

Tid means three doses in a 24-hour day. It comes from the Latin ter in die, meaning “three times in a day.” So a tid prescription is typically spaced about every 8 hours to provide even exposure. That’s why this option is correct. Other frequencies use different Latin abbreviations: twice daily is bid, once daily is often written qd, and four times daily is qid. Tid specifically corresponds to three times per day.