Do not use if you have kidney disease, except under the advice and supervision of a doctor. Ask a doctor or pharmacist before use if you are taking a prescription drug. Ask a doctor before use if you have nausea, vomiting or abdominal pain a sudden change in bowel habits that lasts over 2 weeks irritable bowel syndrome. Warning Allergy alert: Do not use if you are allergic to polyethylene glycol. When using this product you may have loose, watery, more frequent stools. If pregnant or breast-feeding, ask a health professional before use. Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away. Stop use and ask a doctor if you have rectal bleeding or your nausea, bloating, cramping or abdominal pain gets worse. These may be signs of a serious condition. you get diarrhea you need to use a laxative for longer than 1 week.