Brief Answer: Ask your friend to consult doctor at the earliest Detailed Answer: Hi XXXX, Thanks for your query. From the details provided, I understand that your friend is a known case of hypertension, heart disease with atrial fibrillation, and had a stroke in January. * Warfarin or Xarel are not known to produce sweating. * Profuse sweating daily at night in an elderly patient with several diseases, can be due to either an infection somewhere in the body (?Urinary infection, Lungs or abdomen); silent myocardial ischaemic attacks; or episodic atrial fibrillations. * It can also be due to infected vegetations in the heart cavities (in view of she being an old case of atrial fibrillation). * As such, the symptoms of frank infections may be muted in elderly patients. * I wish you had given as much information as possible, even the trivial one which you felt may not be of any relevance. In the absence of required details, I cannot pinpoint the cause. Please ensure that your friend consults her treating doctor at the EARLIEST. he would know what investigations are required to be carried out and will prescribe appropriate treatment accordingly. Hope I have answered your query. if there are further clarifications, I would be happy to answer. Regards, Dr. Rakesh Karanwal

---