Cleveland Clinic logo
Search

Lactitol powder for oral solution

What is this medication?

LACTITOL (LAK ti tol) is a laxative. It is used to treat chronic constipation.

Advertisement

Cleveland Clinic is a non-profit academic medical center. Advertising on our site helps support our mission. We do not endorse non-Cleveland Clinic products or services. Policy

This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions.

This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions.

What should I tell my care team before I take this medication?

They need to know if you have any of these conditions:

  • need a galactose-free diet
  • stomach or intestine problems
  • an unusual or allergic reaction to lactitol, other medicines, foods, dyes, or preservatives
  • pregnant or trying to get pregnant
  • breast-feeding

How should I use this medication?

Take this medicine mouth. Follow the directions on the prescription label. The bottle has a measuring cap that is marked with a line, or, use the packets to measure your dose. Add the powder in the cap to a full glass (4 to 8 ounces or 120 to 240 mL) of water, juice, soda, coffee or tea. Mix the powder well. Ensure that the powder is fully dissolved. Drink the solution. Avoid taking other oral medicines within 2 hours before or 2 hours after this medicine. Take your doses at regular intervals. Do not take your medicine more often than directed.

Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.

Overdosage: If you think you have taken too much of this medicine contact a poison control center or emergency room at once.

Advertisement

NOTE: This medicine is only for you. Do not share this medicine with others.

Overdosage: If you think you have taken too much of this medicine contact a poison control center or emergency room at once.

NOTE: This medicine is only for you. Do not share this medicine with others.

What if I miss a dose?

If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.

What may interact with this medication?

Interactions are not expected. Take other medicines 2 hours before or 2 hours after this medicine to help avoid interactions.

This list may not describe all possible interactions. Give your health care provider a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.

This list may not describe all possible interactions. Give your health care provider a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.

What should I watch for while using this medication?

Tell your doctor or healthcare professional if your symptoms do not start to get better or if they get worse.

Drink plenty of water while taking this medicine. Drinking water helps decrease constipation.

Stop using this medicine and contact your doctor or health care professional if you experience any rectal bleeding or do not have a bowel movement after use. These could be signs of a more serious condition.

What side effects may I notice from receiving this medication?

Side effects that you should report to your doctor or health care professional as soon as possible:

  • allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
  • diarrhea or persistent loose stools
  • increased blood pressure
  • stomach pain

Side effects that usually do not require medical attention (report these to your doctor or health care professional if they continue or are bothersome):

  • bloating
  • gas

This list may not describe all possible side effects. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

This list may not describe all possible side effects. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Where should I keep my medication?

Keep out of the reach of children.

Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Throw away any unused medicine after the expiration date.

Advertisement

NOTE: This sheet is a summary. It may not cover all possible information. If you have questions about this medicine, talk to your doctor, pharmacist, or health care provider.

Advertisement

Copyright ©2026 Elsevier Inc. All Rights Reserved.

Terms of use.

Note: Introduction and Additional Common Questions written and medically approved by Cleveland Clinic professionals.

Ad