Lactiron Syrup is a laxative used to treat constipation. It helps relieve hard stools and difficult bowel movements. It works by increasing water in the intestines, which softens stools and supports easier and more regular bowel movements.
Lactiron Syrup should be taken as advised by your doctor. It may be taken with or without food. You should take the amount your doctor's advice, and you can mix it with water or fruit juice if you prefer. Use this medicine regularly to get the most benefit and try to take it at the same time(s) each day. Your dose may go up or down depending on how well it’s working. Don’t take more than you’re advised to and, if you miss a dose, don’t take an extra one to make up for it. Lactiron Syrup takes at least 48 hours to work. Talk to your doctor if you’re still constipated after three days.
The most common side effects are nausea and vomiting. These are usually mild and go away after a couple of days. You may also feel (or be) sick. You can help avoid the side effects by drinking plenty of fluids, taking your medicine between meals. Occasionally people develop serious side effects including severe stomach pain, severe diarrhea, mood changes and seizures. Talk to your doctor straight away if you notice any of these.
Before taking Lactiron Syrup, you should tell your doctor if you have diabetes or if you’re unable to digest milk sugar (lactose intolerant). If you use this medicine over a long period of time, your doctor may want you to have occasional blood tests to check the mineral levels (e.g. potassium and sodium). Don’t take other laxative medicines while taking this medicine and check with your doctor if you’re pregnant or breastfeeding.
Constipation is a condition where bowel movements become infrequent or difficult to pass. Lactiron Syrup helps soften stools by drawing water into the intestines, making them easier to pass. This improves bowel movement regularity and provides gentle relief from constipation, helping restore digestive comfort.
Side effects of Lactiron Syrup
Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them
Common side effects of Lactiron
Abdominal distension
Cramps
Flatulence
How to use Lactiron Syrup
Take this medicine in the dose and duration as advised by your doctor. Check the label for directions before use. Measure it with a measuring cup and take it by mouth. Shake well before use. Lactiron Syrup may be taken with or without food.
How Lactiron Syrup works
Lactiron Syrup works by drawing water into the intestine through osmosis, which makes the stool soft and easier to pass.
Safety advice
Alcohol
CONSULT YOUR DOCTOR
It is not known whether it is safe to consume alcohol with Lactiron Syrup. Please consult your doctor.
Pregnancy
CONSULT YOUR DOCTOR
The safety of Lactiron Syrup during pregnancy has not been established. There are no adequate and well-controlled studies in pregnant women, and animal data on reproductive toxicity are insufficient. Your doctor will weigh the benefits and any potential risks before prescribing.
Breast feeding
CONSULT YOUR DOCTOR
Information regarding the use of Lactiron Syrup during breastfeeding is not available. Please consult your doctor.
Driving
CONSULT YOUR DOCTOR
It is not known whether Lactiron Syrup alters the ability to drive. Do not drive if you experience any symptoms that affect your ability to concentrate and react. Please consult your doctor.
Kidney
CONSULT YOUR DOCTOR
There is limited data available on the use of Lactiron Syrup in patients with kidney disease. Please consult your doctor.
Liver
CONSULT YOUR DOCTOR
There is limited data available on the use of Lactiron Syrup in patients with liver disease.
What if you forget to take Lactiron Syrup?
If you miss a dose of Lactiron Syrup, skip it and continue with your normal schedule. Do not double the dose.\n
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For informational purposes only. Consult a doctor before taking any medicines.
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It takes about 2-3 days to see the benefits of the treatment. Talk to your doctor if you feel constipated even after 3 days of taking Lactiron Syrup.
What is Lactiron Syrup used for?
Lactiron Syrup is used to treat constipation which is presented as infrequent bowel movements, hard and dry stools. It is also used in patients with hepatic encephalopathy (serious liver problem causing confusion, tremors and decreased level of consciousness).
Is Lactiron Syrup a laxative?
Yes, Lactiron Syrup is a laxative which softens the stools by pulling in water from the body to the large intestine. It is also used to reduce the amount of ammonia in the blood of patients with liver disease.
What are the side effects of taking Lactiron Syrup?
Lactiron Syrup very commonly causes diarrhea, flatulence, nausea, vomiting and abdominal pain. Diarrhea and abdominal pain occur due to high dose and dose should be reduced in such cases. Flatulence may occur during the first few days of treatment and may disappear after sometime. This medicine may also cause electrolyte imbalance. However, this is an uncommon side effect.
Is it okay to take Lactiron Syrup every day?
You should take Lactiron Syrup for as long as advised by your doctor. You may also take it for as long as constipation lasts, which may be upto a week. For hepatic encephalopathy, the treatment may be longer, may be several months.
Who should not be given Lactiron Syrup?
Lactiron Syrup should not be given to patients who are allergic to it or are intolerant to lactose (cannot process lactose). It should also be avoided in patients having galactosemia, a rare health problem where body cannot process galactose.
Can I take other laxatives along with Lactiron Syrup?
Usually one laxative is sufficient to relieve constipation. In case you need it, your doctor may advise you to take one more laxative along with Lactiron Syrup. The risk of side effects is more with 2 laxatives.
What if I take more than the recommended dose of Lactiron Syrup?
Taking more than the recommended dose of Lactiron Syrup may cause abdominal pain, electrolyte imbalance and diarrhea, which may last for a couple of days.
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References
Riggio O, Balducci G, Ariosto F, et al. Lactitol in the treatment of chronic hepatic encephalopathy--a randomized cross-over comparison with lactulose. Hepatogastroenterology. 1990 Oct;37(5):524-7. [Accessed 24 Nov. 2025]. Available from:
Miller LE, Tennilä J, Ouwehand AC. Efficacy and tolerance of lactitol supplementation for adult constipation: a systematic review and meta-analysis. Clin Exp Gastroenterol. 2014;7:241-8. [Accessed 24 Nov. 2025]. Available from:
Maydeo A. Lactitol or lactulose in the treatment of chronic constipation: result of a systematic. J Indian Med Assoc. 2010;108(11):789-92. [Accessed 24 Nov. 2025]. Available from: