What is the significance of the term "Sig" on a prescription label?

The term "Sig" on a prescription label holds particular significance as it is derived from the Latin word "signa," which translates to "to write" or "to mark." It specifically details how the medication should be taken, including the dosage, route of administration, frequency, and any specific instructions regarding the medication's use. This information is crucial for ensuring that the patient or caregiver understands the correct way to administer the medication, thereby promoting safe and effective treatment.

In the broader context of a prescription label, while it may include the patient's name, the prescribing doctor, and refill instructions, "Sig" is uniquely focused on conveying the essential information related to the medication's administration. It acts as a guide for how the medication should be used, thereby reducing the risk of misuse or misunderstanding and enhancing patient care.