A patient walks into your independent pharmacy wearing sunglasses and a wide-brimmed hat. She places Excedrin PM and Excedrin Migraine on the counter She whispers: "that is all." Which of the following is true if the patient plans to take these two medications together?

The patient should not take both of these together because it is a therapeutic duplication.

The patient should not take both of these together, they cancel each other out.

The patient can take both of these together, but there is a theoretical drug interaction.

The patient can take both of these together if she doubles the dose of Excedrin PM.