Which abbreviation indicates a dosing frequency of twice daily?

Which abbreviation indicates a dosing frequency of twice daily?

• A. Bid
• B. Tid
• C. Qid
• D. Hours

Answer: (A)

Two times a day is indicated by bid, which comes from the Latin bis in die meaning “twice in a day.” This shorthand on a prescription tells you to take the dose two times within a 24-hour period, usually spaced about 12 hours apart. It’s the straightforward way to express twice-daily dosing. In comparison, tid means three times daily, and qid means four times daily. The word “Hours” by itself isn’t a standard dosing frequency abbreviation and doesn’t specify how often per day.

Two times a day is indicated by bid, which comes from the Latin bis in die meaning “twice in a day.” This shorthand on a prescription tells you to take the dose two times within a 24-hour period, usually spaced about 12 hours apart. It’s the straightforward way to express twice-daily dosing. In comparison, tid means three times daily, and qid means four times daily. The word “Hours” by itself isn’t a standard dosing frequency abbreviation and doesn’t specify how often per day.