This page contains brief details about the drug , it's indication, dosage & administaration, mechanism of action, related brands with strength, warnings and common side effects.

Background and Date of Approval

Lactitol was initially approved by the United States Food and Drug Administration (FDA) on February 7, 2020.

Mechanism of Action of undefined

Lactitol is a sugar alcohol, similar to other sugar alcohols like sorbitol and mannitol. It works by drawing water into the colon, softening the stool, and increasing the frequency of bowel movements. This helps to alleviate constipation and make bowel movements easier to pass.

Uses of undefined

Lactitol is primarily used as a laxative to relieve constipation. Still, it also finds application in preventing constipation, managing constipation associated with conditions like Irritable Bowel Syndrome (IBS) or opioid use, and facilitating bowel preparation for medical procedures. It can aid in postoperative constipation, pregnancy-related constipation, and constipation linked to neurological conditions. Additionally, it may be considered for individuals with hemorrhoids or anal fissures.

undefined Drug administaration and Dosage available

Lactitol is primarily administered orally. It is available in various forms, including liquid solutions, syrups, and powders, that are meant to be taken by mouth.  Always follow your healthcare provider's instructions regarding the appropriate route and dosage for Lactitol administration.

Warnings, Precautions and Side Effects of undefined


Lactitol contains galactose, which can harm individuals with galactosemia, a rare genetic disorder. It may affect fluid and electrolyte balance in the body. This medication may also impact blood sugar levels. Its prolonged use can lead to reliance on laxatives and may mask underlying gastrointestinal issues.


Do not use lactitol if you have galactosemia. Use it with caution if you have severe kidney impairment or end-stage renal disease. Monitor your blood sugar closely if you have diabetes and are using lactitol, as it may impact blood sugar levels. Stay well-hydrated while using this medication to prevent dehydration, especially if you are prone to fluid imbalances. Avoid prolonged or chronic use of it without medical supervision.

Side Effects

Common side effects of lactitol may include gas, bloating, diarrhea, and abdominal discomfort. These side effects are generally mild and temporary, often improving as the body adjusts to the medication. In rare cases, severe diarrhea may lead to dehydration or allergic reactions. 

Word Of Advice

Avoid Lactitol if you are allergic to it or have galactosemia, a rare genetic condition. It may lead to common side effects like gas, bloating, and diarrhea, so stick to the recommended dosage. If you have kidney problems, diabetes, or are pregnant or breastfeeding, consult your healthcare provider before using this medication. Stay hydrated, as it can cause loose stools. If you are an older adult, have respiratory issues, or take other medications, discuss their use with your healthcare provider. Do not use it for an extended period without medical advice, and seek help if you experience severe abdominal pain or unusual symptoms. Always follow your healthcare provider's guidance and the product label for the safe and effective use of this medication.

Frequently Asked Question


  1. Braintree Laboratories, Inc, US Food and Drug Administration, [Revised on 7th February 2020] [ Accessed on 2nd September 2023],
  2. Amit Maydeo; Lactitol or lactulose in the treatment of chronic constipation: the result of a systematic; Journal of the Indian Medical Association; Published on Nov 2010; Accessed on 02/09/2023;
  3. Larry E Miller et al.; Efficacy and tolerance of Lactitol supplementation for adult constipation: a systematic review and meta-analysis; Clinical and Experimental Gastroenterology; Published on 12/07/2014; Accessed on 02/09/2023;


The drug information on this page is different from medical advice. It is meant for educational purposes only. For further details, consult your doctor about your medical condition to know if you can receive this treatment.