Which abbreviation denotes a medication that should be taken 'twice a day'?

The abbreviation that denotes a medication should be taken 'twice a day' is "bid," which stands for "bis in die" in Latin. This means "twice a day." It is commonly used in medical prescriptions to indicate the frequency of medication administration. Understanding this abbreviation is crucial for maintaining the correct medication schedule for patients, ensuring they receive their doses at appropriate intervals for effective treatment.

In contrast, the other abbreviations carry different meanings. "sq" generally refers to subcutaneous administration, which describes how a medication is given rather than how often. "qod" means "every other day," indicating a different frequency altogether. "mg" stands for milligrams, which is a unit of measurement for drug dosage and does not provide information about the frequency of administration. Therefore, recognizing "bid" as the correct abbreviation for taking medication twice a day is essential for medication management and adherence to prescribed regimens.