What does "qid" mean in terms of frequency of administration?

"qid" is a medical abbreviation derived from the Latin phrase "quater in die," which translates to "four times a day." This term is commonly used in prescribing medications to indicate that the medication should be administered at four specific times throughout the day. The frequency of administration can help in maintaining consistent drug levels in the body, ensuring effective therapeutic outcomes while minimizing side effects.

The other options represent different frequencies of administration but do not align with the meaning of "qid." Understanding these abbreviations is crucial for safe medication administration and interpretation of prescriptions.