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Introduction About DUPHALAC LEMON FLAVOUR ORAL SOLUTION
Duphalac Lemon Flavour Oral Solution 450ml is a gentle osmotic laxative formulated to support regular bowel movements in people dealing with constipation. It contains lactulose, a synthetic sugar that works by drawing water into the intestine, softening stools, and making them easier to pass. This action helps reduce discomfort, bloating, and straining. Its pleasant lemon flavour makes it more acceptable for both adults and children compared to traditional formulations.
Duphalac is especially useful for individuals who require safe and gradual relief from constipation, including the elderly, post-surgical patients, people with piles (haemorrhoids), and children under medical supervision. It may also be prescribed in certain liver-related conditions where reducing toxins in the body is important. The syrup can be taken directly or mixed with water, juice, or milk, and should be consumed at the same time each day for the best results. It generally works within 24–48 hours, making it suitable for routine and long-term use under medical advice.
When taking Duphalac, it is important to follow the prescribed dose carefully. Overuse may lead to bloating, cramps, or diarrhea. Patients should drink plenty of fluids throughout the day to enhance its effectiveness. Those with diabetes, lactose intolerance, or existing bowel obstruction should use it only under medical guidance. It should be stored in a cool, dry place and not frozen.
Duphalac is usually considered safe during pregnancy and breastfeeding when recommended by a doctor, as it acts locally in the gut and is not absorbed into the bloodstream in significant amounts. Common side effects may include mild gas, abdominal discomfort, or loose stools, which often improve as the body adjusts. If symptoms persist or become severe, medical advice should be sought promptly.
Uses Of DUPHALAC LEMON FLAVOUR ORAL SOLUTION
- For constipation
- Used to manage regular bowel patterns
- Used to manage digestive discomfort
- Used to manage certain liver-related conditions
Benefits of DUPHALAC LEMON FLAVOUR ORAL SOLUTION
Duphalac Syrup for Bowel Movement Support
Duphalac Syrup is widely used to support smooth and regular bowel movements. It works by softening the stool and increasing its water content, which makes it easier to pass. This gentle action helps individuals who experience irregularity or difficulty in passing stools. Regular use under medical guidance can improve bowel routine, reduce straining, and enhance overall digestive comfort.
Duphalac Syrup for Digestion
Duphalac Syrup contributes to better digestion by promoting the growth of healthy gut bacteria. It contains lactulose, a prebiotic that supports the natural balance of intestinal flora. This action not only eases bowel movement but also helps in improving gut health and reducing bloating. With its mild and non-irritant effect, Duphalac can be considered as a digestive aid in conditions linked with sluggish bowel activity.
Duphalac Syrup for Constipation
Duphalac Syrup is commonly recommended for managing constipation. It works by drawing water into the intestines, softening stools, and making them easier to pass. This results in relief from hard stools, straining, and discomfort. Suitable for both short-term and long-term use under medical advice, it provides gentle relief without causing dependency. For best results, it should be taken regularly as prescribed, along with adequate fluid intake.
How DUPHALAC LEMON FLAVOUR ORAL SOLUTION Works
Duphalac Mechanism of Action
Duphalac contains lactulose, a synthetic sugar that works mainly in the large intestine. After reaching the colon, it is broken down by gut bacteria into organic acids. These acids increase the water content in the intestine and lower the pH level. As a result, stool becomes softer, and bowel movements occur more smoothly. This process also helps stimulate natural bowel activity, making it easier for the body to pass stools without straining.
Duphalac Role in Softening Stools
Duphalac plays an important role in managing constipation by drawing water into the intestine and softening hard stools. The increased water content adds bulk and makes stools easier to pass, reducing discomfort, bloating, or straining. By promoting a gentle and natural bowel movement, Duphalac supports healthy digestion and regularity. This makes it especially useful for individuals dealing with chronic constipation, post-surgery bowel irregularities, or conditions where straining must be avoided.
How to use DUPHALAC LEMON FLAVOUR ORAL SOLUTION
Duphalac – How to Take
- Duphalac syrup should be taken orally using the measuring cup or spoon provided.
- It can be taken directly or mixed with water, juice, or milk to improve taste.
- Take it at the same time every day for the best results.
- Swallow the dose slowly instead of drinking it in one gulp.
- Always follow the dosage as advised by your doctor or pharmacist.
Duphalac Syrup Dosage Instructions
- The dose of Duphalac may vary depending on age, condition, and medical advice.
- In adults, the dose usually starts higher and may be adjusted gradually.
- For children, only use the syrup under medical supervision with age-appropriate dosing.
- Do not exceed the recommended amount, as it may cause bloating or diarrhea.
- Consistency is important – take Duphalac daily at the prescribed dose to maintain regular bowel movements.
Duphalac Syrup – Before or After Meals
- Duphalac syrup can be taken with or without food.
- Taking it with meals may help reduce stomach discomfort or gas in some individuals.
- Ensure you drink plenty of fluids during the day to enhance its effectiveness.
- If advised by your doctor, stick to the recommended timing (before or after meals).
What if I forgot to take DUPHALAC LEMON FLAVOUR ORAL SOLUTION
- Take the missed dose as soon as you remember.
- If it’s almost time for your next dose, skip the missed one and continue your regular schedule.
- Do not take a double dose to make up for the missed dose.
- Try to take the solution at the same time each day to build a routine.
- If you frequently forget doses, set a reminder or alarm to help stay consistent.
Overdose
If you or someone else accidentally takes more than the recommended amount of Duphalac Lemon Flavour Oral Solution 450ml, consult your doctor immediately or visit the nearest hospital. Symptoms of overdose may include diarrhoea, abdominal pain, bloating, or electrolyte imbalance. Prompt medical attention is important to manage possible complications.
Side Effects Of DUPHALAC LEMON FLAVOUR ORAL SOLUTION
Common Side Effects of Duphalac Lemon Flavour Oral Solution 450ml
- Bloating or abdominal distension
- Flatulence (passing gas)
- Stomach cramps or discomfort
- Nausea
- Mild diarrhoea, especially with higher doses
- Polydipsia
When to Seek Medical Attention?
Stop taking Duphalac Lemon Flavour Oral Solution 450ml and contact your doctor immediately if you experience any of the following side effects:
- Severe or persistent diarrhoea
- Intense abdominal pain or cramping
- Blood in stools or rectal bleeding
- Severe bloating or swelling of the abdomen
- Signs of allergic reaction (such as rash, itching, swelling of face/lips/tongue, difficulty breathing)
- Unusual weakness, confusion, or muscle cramps (possible signs of electrolyte imbalance)
How To Manage Side Effects

Nausea And Vomiting
- Eat Small, Frequent Meals: Instead of three large meals, opt for 5–6 smaller meals throughout the day to reduce stomach discomfort and help prevent nausea.
- Choose Bland, Easy-to-Digest Foods: Foods like crackers, toast, rice, bananas, or applesauce are less likely to trigger nausea and can settle your stomach.
- Stay Hydrated: Sip water or clear fluids slowly throughout the day. Small, frequent sips are better than drinking large amounts at once.
- Avoid Strong Odors: Stay away from foods or environments with strong smells, as these can worsen nausea. Try to keep rooms well-ventilated and avoid cooking smells when possible.
- Rest in an Upright Position: After eating, avoid lying down immediately. Sitting upright for at least 30 minutes after meals can help minimize nausea.
- Try Ginger: Ginger in the form of tea, candy, or supplements may help relieve mild nausea. However, consult a healthcare provider before trying herbal remedies.

Stomach Discomfort
- Warm Compress or Heating Pad: Applying gentle heat on the abdomen helps relax muscles, reduce cramps, and ease bloating-related pain.
- Ginger Tea: Ginger has natural digestive properties that can calm the stomach and reduce discomfort caused by gas or indigestion.
- Peppermint: Drinking peppermint tea or sucking on peppermint lozenges may help relax intestinal muscles and ease stomach spasms.
- Chamomile Tea: Known for its soothing effect, chamomile tea can relieve abdominal cramps and promote relaxation.
- Hydration: Drinking warm water throughout the day aids digestion and reduces bloating, which often contributes to abdominal pain.
- Light Diet: Opt for easily digestible foods such as rice, bananas, or toast to give your stomach rest. Avoid spicy, oily, or heavy meals until the pain subsides.
- Gentle Movement: Light walking or stretching can improve digestion and help release trapped gas, relieving discomfort.
Warning & Precautions

Pregnancy
Consult your doctorDuphalac Lemon Flavour Oral Solution should be used during pregnancy only if clearly advised by a healthcare professional. Discuss potential risks and benefits before use.

Breastfeeding
SafeUse during breastfeeding is generally considered safe in recommended doses. However, consult your doctor for personalised guidance.

Driving and Using Machines
Use with CautionDuphalac is not known to affect alertness, but if you experience bloating, cramps, or discomfort, avoid driving or operating machinery until you feel well.

Alcohol
ContraindicatedAlcohol may aggravate digestive discomfort. It is best to limit or avoid alcohol while using Duphalac Lemon Flavour Oral Solution.

Liver
Consult your doctorIf you have liver problems, use Duphalac only as directed by your doctor, as it may be prescribed in certain liver-related conditions.

Allergy
ContraindicatedAvoid this product if you are allergic to lactulose or any of its ingredients.
Other Warnings for DUPHALAC LEMON FLAVOUR ORAL SOLUTION
Before taking this Talk to your doctor before taking this medicine, if you:
- Have galactosaemia
- Have unexplained abdominal pain
- Have diabetes
- Have low-galactose/low-lactose diet
- Have electrolyte imbalance
Safety Advice
- Use only as directed by your healthcare professional.
- Measure the dose accurately using the provided cup or spoon.
- Drink plenty of water during use to support effectiveness.
- Avoid prolonged use without medical supervision.
- Do not use if the seal is broken or the solution appears discoloured.
- Consult your doctor if symptoms persist or worsen.
Diet and Lifestyle Advice
- Include fibre-rich foods like fruits, vegetables, and whole grains in your meals.
- Drink 6–8 glasses of water daily to support softer stools.
- Engage in regular physical activity, such as walking or light exercise.
- Establish a consistent time for meals and bathroom routines.
- Limit intake of processed foods, fried foods, and refined sugars.
- Avoid excessive caffeine and alcohol, as they may cause dehydration.
- Manage stress through relaxation techniques like yoga or meditation.
1. Duphalac Lemon Flavour Oral Solution 450ml vs. Cremaffin Syrup – Which is Gentler for Constipation Relief
Feature |
Duphalac Lemon Flavour Oral Solution 450ml |
Cremaffin Syrup |
Active Ingredient |
Lactulose (osmotic laxative) |
Liquid paraffin + Milk of magnesia (lubricant + osmotic laxative) |
How It Works |
Increases water in the intestine, softens stool naturally, and promotes gentle bowel movement |
Softens stools by lubrication and draws water into the bowel for quicker action |
Onset of Action |
Works gradually in 24–48 hours |
Works faster, usually within 6–8 hours |
Gentleness |
Considered gentler and better for long-term use |
Provides quicker relief but may cause cramping or urgency in some people |
Best Suited For |
Patients needing mild, gradual constipation relief (including elderly and children under medical advice) |
Patients needing faster relief from occasional constipation |
Safety Profile |
Safe for long-term use under medical guidance; suitable in pregnancy and breastfeeding (if advised by doctor) |
Generally, for short-term use, not always recommended for long-term due to dependency risk |
2. Duphalac Lemon Flavour Oral Solution 450ml vs. Lactihep Syrup – Which Works Faster in Softening Stools
Feature |
Duphalac Lemon Flavour Oral Solution 450ml |
Lactihep Syrup |
Active Ingredient |
Lactulose |
Lactulose |
Primary Use |
Relief from constipation and stool softening |
Stool softening and support in certain liver-related conditions (like hepatic encephalopathy) |
Onset of Action |
Works gradually within 24–48 hours |
May work within 12–24 hours in some cases, but timing can vary |
Gentleness |
Very gentle, suitable for children, elderly, and pregnant women (on doctor’s advice) |
Gentle as well, but may act slightly faster in some individuals |
Best Suited For |
Long-term management of constipation and regular bowel regulation |
People needing constipation relief along with liver health support (when prescribed) |
Safety Profile |
Well-tolerated, with mild side effects like gas or bloating at the start |
Similar safety, but dosing should be more carefully monitored in liver patients |
3. Duphalac Lemon Flavour Oral Solution 450ml vs. Cremaffin Plus – Which Option is Safer for Elderly Patients
Feature |
Duphalac Lemon Flavour Oral Solution 450ml |
Cremaffin Plus |
Active Ingredient |
Lactulose (osmotic laxative) |
Liquid paraffin + Milk of magnesia + Sodium picosulfate |
How It Works |
Draws water into the bowel, softens stools, and promotes gentle movement |
Softens stools (liquid paraffin), draws water into bowel (milk of magnesia), and stimulates bowel movement (sodium picosulfate) |
Onset of Action |
Slow and gradual (24–48 hours) |
Faster action (6–12 hours) |
Gentleness |
Very gentle, reduces straining, suitable for long-term use in elderly |
Faster but may cause cramps, urgency, or dependency if used regularly |
Best Suited For |
Elderly patients needing mild, safe, long-term relief from constipation |
Elderly patients needing quick, short-term relief from occasional constipation |
Safety Profile |
Generally safe under medical advice; fewer risks of dependency |
Needs caution in elderly due to risk of dehydration, electrolyte imbalance, and long-term dependency |
Drug - Drug interaction
1. Antacids containing magnesium or aluminium
- Interaction: May reduce the effectiveness of lactulose if taken together.
- Management: Take Duphalac at least 2 hours before or after such antacids.
2. Broad-spectrum antibiotics (e.g., neomycin)
- Interaction: May reduce the breakdown of lactulose in the colon, decreasing its stool-softening effect.
- Management: Doctor may adjust the dose or monitor effectiveness closely.
3. Diuretics (water tablets)
- Interaction: When combined with Duphalac, may increase the risk of electrolyte imbalance due to fluid loss.
- Management: Regular monitoring of electrolyte levels may be advised.
4. Digoxin
- Interaction: Electrolyte changes (especially potassium levels) caused by long-term or high-dose Duphalac may affect digoxin’s action.
- Management: Doctor may check potassium levels and adjust digoxin dose if needed.
5. Other laxatives
- Interaction: Using multiple laxatives with Duphalac may cause excessive diarrhoea and electrolyte loss.
- Management: Avoid combining unless specifically recommended by a healthcare professional.
Drug - Food interaction
1. High-sugar foods and beverages
- Interaction: Duphalac contains small amounts of sugar and combining it with high-sugar foods may raise overall sugar intake. This may be a concern for people with diabetes.
- Management: Limit intake of sugary foods and drinks and monitor blood sugar levels as advised by your doctor.
2. Low-fluid diets
- Interaction: Not drinking enough fluids while taking Duphalac may reduce its effectiveness and increase the risk of bloating or discomfort.
- Management: Drink 6–8 glasses of water daily unless otherwise advised by your healthcare provider.
3. High-fibre foods (excessive intake)
- Interaction: While fibre is beneficial, a sudden large increase along with Duphalac may cause excessive gas or bloating.
- Management: Increase fibre gradually and balance with adequate water intake.
Synopsis
Drug |
Lactulose |
Pharmacological Category |
Osmotic laxative |
Therapeutic Indication |
Constipation, certain liver-related condition |
Dosage Forms |
Oral solution |
More Information
Storage
- Store at room temperature, away from direct sunlight and heat.
- Do not freeze the solution.
- Keep out of reach and sight of children.
FAQs About DUPHALAC LEMON FLAVOUR ORAL SOLUTION
Q: What is Duphalac Lemon Flavour Oral Solution 450ml used for?
A: Duphalac Lemon Flavour Oral Solution is commonly used to relieve constipation. It works by softening stools and helping them pass more easily, making bowel movements more comfortable.
Q: How should I take Duphalac Lemon Flavour Oral Solution?
A: You can take Duphalac directly with a measuring cup or mix it with water, juice, or milk. Always follow your doctor’s instructions for the correct dose.
Q: When is the best time to take Duphalac syrup?
A: Duphalac can be taken at any time of the day, but many people prefer to take it at the same time daily, often after breakfast, for routine bowel regulation.
Q: Can I take Duphalac before or after meals?
A: Yes, Duphalac can be taken with or without food. If you experience stomach discomfort, you may take it with meals to feel more comfortable.
Q: How long does Duphalac take to work?
A: Duphalac usually starts working within 24 to 48 hours. In some cases, it may take a little longer, depending on your body’s response.
Q: What should I do if I miss a dose of Duphalac?
A: If you forget to take your dose, take it as soon as you remember. If it’s almost time for your next dose, skip the missed one. Do not take two doses at once.
Q: Does Duphalac cause side effects?
A: Some people may experience bloating, gas, stomach cramps, or mild diarrhea when starting Duphalac. These effects are usually temporary.
Q: Can I take Duphalac every day?
A: Yes, Duphalac can be taken daily if recommended by your doctor. Long-term use should be monitored to avoid dependency.
Q: Can I mix Duphalac with juice or milk?
A: Yes, you can mix Duphalac with water, juice, or milk to improve the taste and make it easier to swallow.
Q: Can I stop taking Duphalac suddenly?
A: Yes, you can stop Duphalac if you no longer need it. However, if you are using it regularly, talk to your doctor before making changes.
Q: Can Duphalac help with piles (haemorrhoids)?
A: Duphalac helps soften stools, making them easier to pass. This can reduce straining, which is often beneficial for people with piles.
Q: Is Duphalac a laxative?
A: Yes, Duphalac is an osmotic laxative. It works by drawing water into the intestine to soften stools and ease bowel movements.
Q: Can I take Duphalac with other medicines?
A: Duphalac may interact with some medicines, especially those affecting the stomach or bowels. Always inform your doctor about other medicines you are taking.
Q: Does Duphalac cause dehydration?
A: Taking too much Duphalac may cause diarrhea, which can lead to dehydration. To avoid this, stick to the prescribed dose and drink enough fluids.
Q: Can diabetics take Duphalac Lemon Flavour Oral Solution?
A: Duphalac contains lactulose, a type of sugar. If you have diabetes, you should take it only under medical supervision to avoid affecting blood sugar control.
Q: How long can I use Duphalac?
A: Duphalac can be used short-term or long-term depending on your condition. Always use it as directed by your doctor and avoid self-medicating for long periods.
References
1. K.D. Tripathi, Osmotic Laxatives – Lactulose. Essentials of Medical Pharmacology. 7th edition 2013. Page no 899.
2. Wesselius-De Casparis, A., Braadbaart, S., Bergh-Bohlken, G. E., and Mimica, M. Treatment of chronic constipation with lactulose syrup: results of a double-blind study. NIH National Library of Medicine, National Centre for Biotechnology Information. PubMed Central. [ Revised in February 1968]. [Accessed on 18th August 2025]
3. Institute of Liver and Biliary Sciences, India. To Compare Efficacy and Safety of Lactulose Versus Polyethylene Glycol for Treatment of Overt Hepatic Encephalopathy in Cirrhotics. NIH U.S. National Library of Medicine ClinicalTrials.gov. [Revised in 28th February 2018] [Accessed on 18th August 2025]
4. Braintree Laboratories, Inc., U.S. Food & Drug Administration. [Revised in February 2020] [Accessed on 18th August 2025]
5. Fresenius Kabi Austria GmbH. Health Products Regulatory Authority (HPRA). [Revised in June 2022] [Accessed on 18th August 2025]