Generic Name: Lactulose

  • What is Kristalose?

    Kristalose is a medicine used to treat constipation. Kristalose increases the number of bowel movements per day and the number of days on which bowel movements occur.

  • What is the most important information I should know about Kristalose?

    Tell your doctor that you are taking Kristalose if you are scheduled for a procedure called a colonoscopy or proctoscopy. You should have a thorough bowel cleansing prior to your procedure.

    Kristalose contains galactose and lactose (sugars). Tell your doctor if you have diabetes.

    Tell your doctor if you notice any unusual diarrhea while you are taking this medication.

  • Who should not take Kristalose?

    Do not take Kristalose if you require a low galactose diet.

    Do not take Kristalose if you are allergic to it or any of its ingredients.

  • What should I tell my doctor before I take the first dose of Kristalose?

    Tell your doctor about all prescription, over-the-counter, and herbal medications you are taking before beginning treatment with Kristalose. Also, talk to your doctor about your complete medical history, especially if you have diabetes.

  • What is the usual dosage?

    The information below is based on the dosage guidelines your doctor uses. Depending on your condition and medical history, your doctor may prescribe a different regimen. Do not change the dosage or stop taking your medication without your doctor's approval.

    Adults: The recommended dose is 10-20 grams (g) once a day. Your doctor may increase your dose as appropriate.

  • How should I take Kristalose?

    Take Kristalose exactly as prescribed by your doctor. Dissolve contents of the Kristalose packet in half a glass (4 ounces) of water. The resulting solution should be a colorless to a slightly pale yellow color.

  • What should I avoid while taking Kristalose?

    Do not take antacids while you are taking Kristalose.

  • What are possible food and drug interactions associated with Kristalose?

    If Kristalose is taken with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important to check with your doctor before combining Kristalose with antacids.

  • What are the possible side effects of Kristalose?

    Side effects cannot be anticipated. If any develop or change in intensity, tell your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking this drug.

    Side effects may include: diarrhea, gas, intestinal cramps, nausea, vomiting

  • Can I receive Kristalose if I am pregnant or breastfeeding?

    The effects of Kristalose during pregnancy and breastfeeding are unknown. Tell your doctor immediately if you are pregnant, plan to become pregnant, or are breastfeeding.

  • What should I do if I miss a dose of Kristalose?

    If you miss a dose of Kristalose, take it as soon as you remember. However, if it is almost time for your next dose, skip the one you missed and return to your regular dosing schedule. Do not take two doses at once.

  • How should I store Kristalose?

    Store at room temperature.