What does "Px" refer to?

The term "Px" is commonly used in medical contexts and is an abbreviation for "prescription." This abbreviation is widely recognized in healthcare settings, where it signifies the medication or treatment that a healthcare provider has authorized for a patient. It is derived from the Latin word "praeceptum," which means "to take beforehand" or "to order."

While "Phone," "Personal," and "Package" may have their own uses in different contexts, they do not accurately capture the meaning of "Px" within the medical or pharmaceutical lexicon. Thus, the definition aligned with prescription is the most appropriate and universally accepted response.