Rationale for psych behavior sheet for Ranexa

We have a fairly new patient on our floor and with it being the end of the month, we are working on the changeover paperwork that pharmacy has sent. One of the things they send us are behavior flow sheets for patients who are on psych meds, with the corresponding meds listed at the bottom of the sheet.
This new patient is on Ranexa for angina, but we have recieved a behavior sheet on her related to this drug and I was wondering if anyone had a rationale for that. I haven't found anything yet to explain why she would need a psych sheet for an angina drug. Thanks