| Clinical data | |
|---|---|
| Trade names | Importal, Pizensy, Lacty |
| Other names | Lactitol Hydrate (JANJP) |
| License data | |
| Routes of administration | By mouth |
| ATC code | |
| Legal status | |
| Legal status | |
| Identifiers | |
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| CAS Number | |
| PubChemCID | |
| DrugBank | |
| ChemSpider | |
| UNII | |
| KEGG | |
| ChEBI | |
| ChEMBL | |
| E number | E966(glazing agents, ...) |
| CompTox Dashboard(EPA) | |
| ECHA InfoCard | 100.008.698 |
| Chemical and physical data | |
| Formula | C12H24O11 |
| Molar mass | 344.313 g·mol−1 |
| 3D model (JSmol) | |
| Melting point | 146 °C (295 °F) |
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Lactitol is adisaccharide sugar alcohol produced fromlactose. It is used as a replacement bulksweetener for lowcaloriefoods with 30–40% of the sweetness ofsucrose. It is also used medically as alaxative.
Lactitol is produced by hydrogenation oflactose usingRaney nickel catalyst. The product can be obtained as an anhydrous, monohydrate, or dihydrate. Two manufacturers,Danisco and Purac Biochem, produce about 10,000 tons/y.[1]
Lactitol is used in a variety of lowfood energy orlow fat foods. High stability makes it popular forbaking. It is used insugar-freecandies,cookies (biscuits),chocolate, andice cream, with a sweetness of 30–40% that of sucrose.[2] Lactitol also promotescolon health as aprebiotic. Because of poor absorption, lactitol only has 2–2.5kilocalories (8.4–10.5kilojoules) pergram,[2] compared to 4 kilocalories (17 kJ) per gram for typicalsaccharides. Hence, lactitol is about 60% as caloric as typical saccharides.
Lactitol is listed as anexcipient in some prescription drugs.[3][4]
Lactitol is a laxative and is used to prevent or treatconstipation,[5] e.g., under the trade name Importal.[6][7]
In February 2020, Lactitol was approved for use in the United States as an osmotic laxative for the treatment ofchronic idiopathic constipation (CIC) in adults.[8][9][10]
Lactitol in combination withIspaghula husk is an approved combination foridiopathic constipation as a laxative and is used to prevent or treat constipation.[medical citation needed]
Lactitol,erythritol,sorbitol,xylitol,mannitol, andmaltitol are all classified sugar alcohols (lactitol and maltitol are in fact disaccharide alcohols, since they contain one intact sugar).[1] The U.S.Food and Drug Administration (FDA) classifies sugar alcohols as "generally recognized as safe" (GRAS).[medical citation needed] They are approved as food additives, and are recognized as not contributing totooth decay or causing increases inblood glucose.[medical citation needed] Lactitol is also approved for use in foods in most countries around the world.[medical citation needed]
Like other sugar alcohols, lactitol causes cramping, flatulence, and diarrhea in some individuals who consume it. These effects arise because humans lack a suitable beta-galactosidase in the upper gastrointestinal (GI) tract, and a majority of ingested lactitol reaches the large intestine,[11] where it then becomes fermentable to gut microbes (prebiotic) and can pull water into the gut by osmosis.[medical citation needed] For these reasons, medical advice is often sought before their use.
The U.S.Food and Drug Administration (FDA) approved Pizensy based on evidence from a clinical trial (Trial 1/ NCT02819297) of 594 subjects with CIC conducted in the United States.[10] The FDA also considered other supportive evidence including data from Trial 2 (NCT02481947) which compared Pizensy to previously approved drug (lubiprostone) for CIC, and Trial 3 (NCT02819310) in which subjects used Pizensy for one year as well as data from published literature.[10]
The benefit and side effects of Pizensy were evaluated in a clinical trial (Trial 1) of 594 subjects with CIC.[10] In this trial, subjects received treatment with either Pizensy or placebo once daily for 6 months.[10] Neither the subjects nor the health care providers knew which treatment was being given until after the trials were completed.[10]
In the second trial (Trial 2) of three months duration, improvement in CSBMs was used to compare Pizensy to the druglubiprostone which was previously approved for CIC.[10] The third trial (Trial 3) was used to collect the side effects in subjects treated with Pizensy for one year.[10]