This interested me, because it helps me understand a lot of what Michael suffered with physically and emotionally alone. Its a very frustrating disease with little treatment or help because doctors understand so little about it. He might have been on multiple medications to help the multiple symptoms, because easing symptoms is the most usual way of handling lupus if the patient is not willing to take the dangerous medications that are often worse than the illness. It also explains why he had hired a Dr. to be at his beck and call 24/7. The one that was with him when he collapsed. The ravages of the illness itself could have caused his demise, but so could any medications he had been on, or the reaction of more than 1 medication he might have been taking.
Anna Nicole Smith also had lupus, and died under similar circumstances as Michael.
Click on the links below, and you will be taken to the news article about it.
Jackson diagnosed with Lupus
Michael Jackson's health and appearance
Dr. Dee Pak Chopra: Jackson has lupus
Michael Jackson attends lupus fundraiser
Celebrities With Lupus