My sister, who is 73 y.o., has been advised by her hemotologist to start iron infusion treatments for anemia. She has 2 serious health issues that she's been dealing with for years: lupus and polymyositis. One of the problems as a result of the poly is gastrointestinal; bouts of diarhea and constipation, vomiting. This past year she was hospitalized twice for severe dehydration. While there, diagnosed as being anemic & malnourished. Hematologist says iron supplements won't help at this point. Thank you.