What does "SIG" in a prescription indicate?

The term "SIG" in a prescription is derived from the Latin word "signa," which translates to "to write" or "label." It specifically refers to the instructions on how the medication should be taken by the patient. This can include details such as the route of administration (e.g., orally, topically), any specific preparation requirements, and important information regarding timing and food intake related to the medication.

While the prescribed dosage and frequency of administration are essential components of the prescription, they are part of the broader instructions encompassed by "SIG." Therefore, the correct interpretation of "SIG" is a comprehensive guideline that informs the patient on the exact manner in which they should take their medication, ensuring proper usage and adherence to the treatment plan. Thus, understanding "SIG" is crucial for patients to effectively manage their medications.