Lactulose Syrup: Complete Guide to Uses, Dosage, and Safety
Clinical Reference Standards: CDSCO (Central Drugs Standard Control Organisation), Indian Pharmacopoeia (IP) & WHO | Last Updated: September 2026
When to Call Your Doctor IMMEDIATELY
- Severe abdominal pain or cramping
- Blood in stool or vomit
- Signs of dehydration (dry mouth, decreased urination, dizziness)
- Irregular heartbeat or muscle weakness
- Rash, itching, or swelling of face, lips, or throat
- Confusion or difficulty breathing
If experiencing severe symptoms, call emergency services immediately.
What is actual syrup used for?
This medicine is a lactulose syrup used to treat constipation and hepatic encephalopathy. It works by drawing water into the intestines to soften stools and by reducing ammonia levels in the blood.
- Generic Name: Lactulose (100mg)
- Manufacturer: Biosans Lifecare
- Form: Allopathy
- Pregnancy Category: Consult doctor
- Prescription Required: Yes
🇮🇳 actual syrup के बारे में (Hindi Summary)
उपयोग: यह दवा लैक्टुलोज़ सिरप है, जिसका उपयोग कब्ज और हेपेटिक एन्सेफलोपैथी के इलाज के लिए किया जाता है। यह आंतों में पानी खींचकर मल को नरम करती है और रक्त में अमोनिया के स्तर को कम करती है।
साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में पेट फूलना, गैस, और पेट में ऐंठन शामिल हैं। ये आमतौर पर कुछ दिनों में ठीक हो जाते हैं। दस्त हो सकता है अगर खुराक बहुत अधिक हो। गंभीर दुष्प्रभाव दुर्लभ हैं लेकिन निर्जलीकरण और इलेक्ट्रोलाइट असंतुलन हो सकता है।
सुरक्षा सलाह: इस दवा को डॉक्टर के निर्देशानुसार ही लें। खुराक बढ़ाने से पहले डॉक्टर से सलाह लें। दिन भर पर्याप्त पानी पिएं। मधुमेह रोगी रक्त शर्करा की निगरानी करें। गर्भवती या स्तनपान कराने वाली महिलाएं डॉक्टर से परामर्श लें। दो सप्ताह से अधिक उपयोग न करें।
💊 actual syrup Uses & Benefits
[{"condition":"Constipation","description":"Relieves constipation by softening stools and increasing bowel movements.","evidence":"Well-established"},{"condition":"Hepatic encephalopathy","description":"Reduces blood ammonia levels by trapping ammonia in the gut and promoting its excretion.","evidence":"Well-established"}]
Off-label uses: [{"condition":"Small intestinal bacterial overgrowth (SIBO)","description":"Sometimes used as a substrate in breath tests for diagnosing SIBO.","evidence":"Limited"}]
Primary treatment for: Constipation
Also treats: Hepatic encephalopathy
📋 Drug Information
| Generic Name(s) | Lactulose (100mg) |
| Brand Name | actual syrup |
| Manufacturer | Biosans Lifecare |
| Packaging / Form | Varies by brand (Allopathy) |
| Therapeutic Class | GASTRO INTESTINAL |
| Action Class | Osmotic laxatives/Purgative |
| Route of Administration | Oral |
| Storage | Store at room temperature (15-30°C). Protect from light and moisture. Do not freeze. |
| Shelf Life | 24 months from the date of manufacture. |
| WHO Guideline | Not established from the available information. |
| ICMR Guideline | Not established from the available information. |
👨⚕️ Doctor's Practical Tips
Evidence-based practical advice from experienced clinicians
🔍 Is This Medicine Right for Your Symptom?
Educational reference. Always consult a doctor for diagnosis.
🔬 How This Medicine Works (Pharmacology)
Pharmacokinetics
How It Works
This medicine works by osmotic action in the colon. Lactulose is a synthetic disaccharide that is not absorbed in the small intestine. When it reaches the colon, it is metabolized by colonic bacteria into lactic acid, acetic acid, and formic acid. These acids increase the osmotic pressure, drawing water into the colon and softening the stool. The acidification also converts ammonia to ammonium ions, which are less absorbable, thereby reducing blood ammonia levels.
Mechanism Steps
💡 How to Take actual syrup
Strength: Lactulose 100mg per 5mL syrup.
Dosage Information
| Adult Dosage | The usual adult dose for constipation is 15-30 mL (10-20 g) daily, preferably taken with a full glass of water. For hepatic encephalopathy, the dose is individualized to produce 2-3 soft stools per day, typically 30-45 mL (20-30 g) three to four times daily. Dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function. |
| Pediatric Dosage | Pediatric dosing is not established from available information. Consult a pediatrician. |
| Elderly Dosage | Elderly patients may require lower doses due to increased sensitivity to electrolyte imbalances. Start with a lower dose and adjust as needed under medical supervision. |
| Renal Impairment | No specific dose adjustment is established for renal impairment. Use with caution and monitor electrolytes. |
| Hepatic Impairment | No specific dose adjustment is required for hepatic impairment. This medicine is used to treat hepatic encephalopathy. |
| Maximum Daily Dose | The maximum recommended daily dose for constipation is 60 mL (40 g). For hepatic encephalopathy, doses up to 120 mL (80 g) daily may be used under medical supervision. |
Dosage Timeline
🍽️ Food Timing Guide
⏰ What to Do If You Miss a Dose
⚠️ Side Effects of actual syrup
✅ Common Side Effects
🚨 Serious Side Effects
⚠️ Rare Side Effects
Consult your doctor if you experience any unusual symptoms.
🔬 Drug Interactions
| Drug | Severity | Effect |
|---|---|---|
| Other laxatives | Major | |
| Antibiotics | Moderate | |
| Diuretics | Moderate | |
| Corticosteroids | Moderate | |
| Antacids | Minor |
🚨 Major Interactions
- Other laxatives
- Antibiotics
⚡ Moderate Interactions
- Diuretics
- Corticosteroids
🍷 Alcohol Interaction
Alcohol may worsen dehydration and electrolyte imbalance caused by this medicine. It is advisable to avoid alcohol while taking this medicine.
🔎 Check Your Other Medicines
Educational tool. Always confirm with your doctor or pharmacist.
🛡️ Safety & Warnings
🚫 Contraindications
["Galactosemia","Bowel obstruction","Gastrointestinal perforation","Severe inflammatory bowel disease","Known hypersensitivity to lactulose"]
⚠️ Warnings & Precautions
["Use with caution in patients with diabetes mellitus due to sugar content.","Avoid use in patients with galactose intolerance.","Do not use for more than 2 weeks without medical advice.","May cause dehydration if excessive diarrhea occurs.","Elderly patients may be more susceptible to electrolyte imbalances."]
🤱 Lactation Safety
This medicine is considered safe during breastfeeding as it is poorly absorbed into the bloodstream and minimally excreted in breast milk. Consult your doctor for guidance.
💊 Overdose Management
Overdose may cause severe diarrhea, dehydration, and electrolyte imbalance. Treatment is supportive and symptomatic. Seek immediate medical attention if overdose is suspected. Do not induce vomiting unless instructed by a healthcare professional.
⏰ Missed Dose
If you miss a dose, take it as soon as you remember. If it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not double the dose to catch up.
Additional Safety Advice
Take this medicine exactly as prescribed by your doctor. Do not increase the dose without consulting your healthcare provider. Drink plenty of water throughout the day to help soften stools and prevent dehydration. Avoid taking other laxatives unless advised. If you have diabetes, monitor your blood sugar levels as this medicine contains sugars. Inform your doctor if you are pregnant, planning to become pregnant, or breastfeeding. Do not use this medicine for more than two weeks without medical advice. Keep out of reach of children.
👴 Special Considerations for Elderly
💡 For Patients Above 65
Elderly patients are more prone to electrolyte imbalances and dehydration. Use with caution and monitor closely.
🤰 Pregnancy Planning (TTC)
This medicine is considered safe during pregnancy. Consult your doctor before planning pregnancy if you are on this medicine.
🏥 Post-Surgery Considerations
Consult your doctor before using this medicine after surgery, especially abdominal surgery.
🦷 Dental Procedures
No specific considerations. Inform your dentist if you are taking this medicine.
💚 Lifestyle Tips for Better Results
🏋️ Exercise Considerations
No specific exercise restrictions. However, if you experience dizziness or weakness from dehydration, avoid strenuous activities.
🥗 Diet Recommendations
💼 Impact on Daily Work & Life
This medicine may cause frequent bowel movements, so plan your day accordingly. It does not affect driving or operating machinery.
🛑 When to Stop This Medicine
Stop this medicine and consult your doctor if you experience severe diarrhea, dehydration, or allergic reactions. Do not stop prescribed therapy for hepatic encephalopathy without medical advice.
📅 Long-Term Use Effects
Long-term use of this medicine is generally safe but may lead to electrolyte imbalances, especially in elderly patients or those with kidney disease. Regular monitoring of electrolytes is advised. It is not habit-forming.
🌿 Non-Medicine Approaches
These can complement medicine but do not replace prescribed treatment.
Increasing fiber intake can help relieve constipation.
Evidence: Well-establishedMay improve gut health and regularity.
Evidence: Limited💉 Vaccination Considerations
💉 If You're Getting Vaccinated
No known interactions with vaccines.
📦 Storage Guide
✅ DO
Store at room temperature (15-30°C)
❌ DON'T
Do not refrigerate unless specified
✅ DO
Keep in original container
❌ DON'T
Do not transfer to unmarked containers
✅ DO
Keep away from direct sunlight
❌ DON'T
Do not store in bathroom cabinet
✈️ Traveling with This Medicine
Carry this medicine in its original packaging with a copy of your prescription. Store at room temperature and protect from light. If traveling across time zones, continue your regular dosing schedule. Check customs regulations for carrying medications. Keep enough supply for your trip.
💰 Cost Analysis & Savings
👥 Real Patient Stories
Educational, anonymized scenarios. Individual results may vary.
💬 Questions Patients Often Ask
A: This medicine typically takes 24 to 48 hours to produce a bowel movement.
A: Yes, it can be taken daily for constipation, but for long-term use, consult your doctor.
A: It contains sugars, so diabetics should monitor blood sugar levels and consult their doctor.
🤔 Common Patient Concerns
🛑 Myths vs. Facts
- Myth: This medicine is addictive.
Fact: This medicine is not addictive and does not cause dependence. - Myth: This medicine is only for old people.
Fact: This medicine can be used by adults and children for constipation, but pediatric use requires medical advice.
🔄 Alternative Options
Generic Alternatives
- Lactulose solution
Brand Alternatives
- Duphalac
- Looz
- Lactihep
- Cephulac