Patient w/ short bowel syndrome. Weak immune system eg, HIV/AIDS or lymphoma, patients under long-term corticosteroid treatment, patients undergoing cancer treatment, patients taking medications that weaken the immune system. Powd: Do not exceed the recommended daily use. Should not be used as substitute for varied diet. Patient w/ fever, vomiting, bloody diarrhea or severe abdominal pain; damaged heart valves. Stop use if symptoms of digestive upset occur, worsen &/or persist beyond 3 days.