Is Taking Caffeine Contained Beverages Restricted For Rabies Vaccine Administered Patient?

Good Morning. I am a 52 year old female, 230 lbs, currently being treated for epilepsy, hypertension and very moderately elevated cholesterol (on meds for all 3--respecively, divalproex, lisinopril and pravastatin). Last night, I was bitten by squirrel (don't ask) and received my first rabies vaccine (immunoglobin)--also prescribed for the bite: Amox-Clav 875 mg, 1 tab every 12 hours. My husband thought he overheard the nurse advising against drinking any beverages containing caffeine. Is that true? I only drink decaf coffee and/or chai tea on the weekends, decaf green tea daily. Thank you for your assistance!