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Lactitol Side Effects

The most commonly reported side effects of lactitol include acute kidney injury, fall, and hyponatraemia, based on 331 FDA adverse event reports from 2004 to 2025. 3.6% of reports found the drug to be ineffective.

Lactitol side effects

Percentages show how often each reaction appears relative to total reports for lactitol.

1
Acute Kidney Injury5.1%17
2
Fall4.2%14
3
Hyponatraemia3.6%12
4
Drug Interaction3.6%12
5
Myoclonus3.6%12
6
Drug Ineffective3.6%12
7
Interstitial Lung Disease3.3%11
8
Asthenia3.0%10
9
Hepatic Encephalopathy3.0%10
10
Hypertension3.0%10
11
Hepatic Encephalopathy2.7%9
12
Anxiety2.7%9
13
Decreased Appetite2.7%9
14
Pruritus2.7%9
15
Somnolence2.7%9

These are voluntary reports and do not establish that lactitol caused these reactions.

Report severity

98.2%Serious325 reports
68.6%Hospitalizations227 reports
17.5%Fatal58 reports

Seriousness is determined by the reporter, not by OpenClaim.

Lactitol drug interactions

Other drugs that appear in adverse event reports alongside lactitol. Drugs flagged as a suspected cause appear in the first column. Drugs taken at the same time but not suspected appear in the second.

Also suspected

1
Spironolactone7.3%24
2
Atorvastatin-calcium5.1%17
3
Furosemide4.2%14
4
Acetaminophen3.6%12
5
Carboplatin3.6%12
6
Omeprazole3.0%10
7
Atezolizumab3.0%10
8
Ceftriaxone-sodium2.7%9
9
Ondansetron2.7%9
10
Aprepitant2.7%9
11
Sofosbuvir2.7%9
12
Levodopa2.7%9
13
Buprenorphine2.7%9
14
Tacrolimus2.4%8
15
Bevacizumab2.4%8

Taken alongside

1
Furosemide19.6%65
2
Omeprazole19.6%65
3
Acetaminophen17.5%58
4
Spironolactone13.9%46
5
Amlodipine9.1%30
6
Fentanyl8.8%29
7
Rifaximin8.2%27
8
Pantoprazole-sodium7.9%26
9
Lorazepam7.6%25
10
Zolpidem-tartrate6.9%23
11
Allopurinol6.9%23
12
Tramadol-hydrochloride6.9%23
13
Insulin6.9%23
14
Heparin6.9%23
15
Aspirin6.6%22

Co-occurrence in adverse event reports does not establish a drug interaction. Patients often take multiple medications, and these lists reflect prescribing patterns rather than causal relationships. Consult a healthcare provider about potential drug interactions.

Who reports lactitol side effects

42.0% of lactitol adverse event reports involve female patients and 51.4% involve male patients. The largest age group is elderly at 55%. These figures reflect who reports side effects, not underlying risk.

Sex

Female42.0%
Male51.4%
Unknown6.6%

Age group

< 20.4%
2–111.1%
12–171.1%
18–6442.0%
65+55.5%

What is lactitol used for

Conditions and purposes for which patients were taking lactitol when the adverse event was reported.

Ammonia IncreasedAsthmaAbnormal FaecesAmmonia IncreasedAutoimmune HepatitisConstipationConstipation ProphylaxisConstipationConstipation ProphylaxisDecreased AppetiteDehydrationDrug Use For Unknown IndicationDefaecation DisorderDehydrationEncephalopathy

Showing 15 of 26 indications

Lactitol brand names and reporting trend

Lactitol is sold under the brand name Pizensy.

Brand names

Pizensy352

Quarterly reports (20042025)

20052010201520202025

An upward trend reflects increased FAERS reporting overall, not necessarily increased risk.

Taking lactitol with another medication?

Ask OpenClaim about your specific drug combination. Get a sourced report using FDA data, drug labels, and medical literature.