This is from a case study, Pt diagnosed with Graves disease and prescribed propanolol and propylthiouracil. She stopped taking propylthiouracil suddenly then ended up at ER with hypotension, tachycardia, fever, nausea, vomiting, diarrhea and confusion. I know that n/v/d are side effects of propanolol. Could she possibly be having a thyroid storm due to stopping the propylthiouracil?