Ask a doctor or pharmacist before use if you are taking a prescription drug. This product may interact with certain prescription drugs. Ask a doctor before use if you have, kidney disease a magnesium-restricted diet, a sudden change in bowel habits that lasts over 14 days. Stop use and ask a doctor if you have rectal bleeding or failure to have a bowel movement after using this product. These could be signs of a serious condition. you need to use a laxative for more than 1 week. 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.