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Duphalac Syrup: Uses, Dosage & Side Effects in Pakistan

Duphalac Syrup (Lactulose) ke quick uses, dose guide, side effects, warnings, aur buying price range.

Compiled by the PakVita Editorial Team · AI-assisted drafting with editorial review · Sourced from DRAP, WHO, BNF · Last updated:

A named review is not recorded for this page. Confirm medicine advice with your doctor or pharmacist.

OTC

Form

SYRUP

Strength

10g/15ml

Manufacturer

Abbott Laboratories

Estimated price

Rs. 316 - 597

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What is Duphalac Syrup used for?

  • Chronic constipation
  • Occasional constipation
  • Reducing ammonia levels in patients with liver impairment
Read full Uses guide →

How to take Duphalac Syrup?

Adult dose: Constipation: 15 to 45 ml a day to start, then 15 to 30 ml a day

Child dose: 7 to 14 years: 15 ml a day to start, then 10 to 15 ml a day; 1 to 6 years: 5 to 10 ml a day; under 1 year: up to 5 ml a day (only on a doctor's advice)

Read full Dosage guide →

Important warnings

  • Do not use Duphalac Syrup if you are allergic to Lactulose or any component of the medicine
  • Individuals with galactosemia should not use this syrup
  • Patients with intestinal blockages

Duphalac Syrup Uses, Dosage, Side Effects & Price in Pakistan

1. Quick Info (Mukhtasir Maloomat)

FieldDetails
Brand NameDuphalac
Generic NameLactulose
Strength10g/15ml
FormSyrup
Drug ClassLaxative
ManufacturerAbbott Laboratories
PrescriptionOTC — available without a prescription; ask a pharmacist or doctor before use, especially for children
PriceRs. 316 - 597 approx
Packaging120 ml and 240 ml bottles

2. What is Duphalac Syrup? (Duphalac Syrup kya hai)

Duphalac Syrup is a medicine commonly used in Pakistan for constipation. Its active ingredient, Lactulose, helps regulate bowel movements and reduce ammonia levels in the blood. PakVita provides detailed information on Duphalac Syrup's uses, how to take it safely, potential side effects, and important safety notes.

3. Uses (Fayde / Kis kaam aati hai)

  • Chronic constipation
  • Occasional constipation
  • Reducing ammonia levels in patients with liver impairment

4. Who Should Take (Kis ko leni chahiye)

  • Adults and children with constipation, as advised by a pharmacist or doctor
  • People with liver disease and high ammonia levels (hepatic encephalopathy), under a doctor's care

5. When NOT to Take (Kab nahi leni chahiye)

  • If you are allergic to Lactulose or any component of the medicine
  • Individuals with galactosemia should not use this syrup
  • Patients with intestinal blockages, a tear (perforation) in the gut, or a risk of perforation

6. Dosage (Kitni leni hai)

  • Adults and adolescents (constipation): 15 to 45 ml a day, taken once daily or split into two doses
  • Children 7 to 14 years: 15 ml a day; children 1 to 6 years: 5 to 10 ml a day; infants under 1 year: up to 5 ml a day (only on a doctor's advice)
  • Adults and adolescents (constipation): 15 to 30 ml a day as a maintenance dose, adjusted to your response
  • Children 7 to 14 years: 10 to 15 ml a day; children 1 to 6 years: 5 to 10 ml a day
  • Liver disease (hepatic encephalopathy, adults only): 30 to 45 ml three to four times a day, adjusted by the doctor to give two to three soft stools a day
  • No fixed maximum is set in the product information. Stay within the dose your doctor advises, and reduce the dose if diarrhoea or stomach pain occurs, because long-term use of unadjusted doses can upset the body's salt (electrolyte) balance
  • If you miss a dose, take it as soon as you remember. If the next dose is close, skip the missed dose. Never take a double dose.

7. How to Take (Kaise leni hai)

  • Once a day, or split into two doses a day for constipation. For liver disease, three to four times a day as your doctor advises
  • Take a once-daily dose at the same time each day, for example with breakfast
  • It can take 2 to 3 days of regular use before it starts to work. Drink plenty of fluids, about 6 to 8 glasses a day
  • With or without food. It can be taken undiluted or mixed with water or fruit juice

8. Best Time (Kab leni chahiye)

  • A once-daily dose is best taken at the same time each day, for example with breakfast
  • Same time daily to maintain a routine

9. Empty Stomach or After Food (Khali pait ya khane ke baad)

  • It can be taken either way, on an empty stomach or with food. Swallow the dose in one go rather than holding it in the mouth.

10. Warnings (Ihtiyat)

  • Do not use Duphalac Syrup if you are allergic to Lactulose or any component of the medicine
  • Individuals with galactosemia should not use this syrup
  • Patients with intestinal blockages
  • See a doctor first if you have stomach pain of unknown cause, or if you have diabetes and need the higher liver-disease dose
  • Laxatives should only be given to children occasionally and under medical supervision

11. Precautions (Ahm ehtiyaat)

  • Store in a cool, dry place
  • Keep away from direct sunlight
  • Keep out of the reach of children

12. Side Effects (Nuksanat)

  • Mild abdominal cramping, Flatulence, Nausea
  • Severe allergic reactions, Persistent diarrhea leading to dehydration, Breathing issue

13. Drug Interactions (Dawaon ke sath reaction)

  • No interaction studies have been performed with lactulose, and no significant drug interactions are listed in the product information
  • Tell your doctor or pharmacist about all other medicines you take, including other laxatives

14. When to See Doctor (Kab doctor ke paas jayein)

  • Severe stomach pain
  • Persistent diarrhea leading to dehydration
  • Fainting
  • Constipation that does not improve after a few days of treatment

15. Alternatives (Sasti Dusri Dawaein)

Brand NameCompanySalt (Generic)
Dulac SyrupCCL PharmaceuticalsLactulose 3.35g/5ml
Hilac Oral SolutionHilton PharmaLactulose
Coloshyld SyrupMartin DowLactulose 3.35g/5ml

16. Price in Pakistan (Price kitni hai)

Pack SizePrice (Approx)
120 ml bottleRs. 316 approx
240 ml bottleRs. 597 approx

(Note: Approximate prices from online Pakistani pharmacy listings checked in October 2026. Price depends on the pharmacy and pack size.)

17. FAQs (Aksar poochay jane walay sawalat)

Q: Duphalac Syrup kis kaam aati hai?

A: Duphalac Syrup contains lactulose, a laxative used to treat constipation in adults and children. Doctors also use it at higher doses for hepatic encephalopathy, a brain problem caused by severe liver disease, because it lowers ammonia levels in the blood.

Q: Duphalac Syrup kitni leni chahiye?

A: For constipation, adults usually start with 15 to 45 ml a day and continue on 15 to 30 ml a day, taken once daily or split into two doses. Children's doses depend on age, for example 5 to 10 ml a day for ages 1 to 6. Follow your doctor's plan.

Q: Pakistan mein Duphalac Syrup ka price kya hai?

A: Online pharmacy listings in October 2026 show about Rs. 316 for a 120 ml bottle and about Rs. 597 for a 240 ml bottle. Prices vary by pharmacy and city, so verify the current rate at a local store or online listing.

Q: Kya Duphalac Syrup pregnancy mein safe hai?

A: The product information says Duphalac can be used during pregnancy and breastfeeding, because very little lactulose is absorbed into the body. Still, do not self-medicate during pregnancy; check with your doctor first.

Q: Duphalac Syrup ke nuksanat kya hain?

A: Diarrhoea, wind (flatulence), stomach pain, nausea and vomiting are the usual side effects. Wind is common in the first few days and usually settles. Reduce the dose if you get diarrhoea, and get medical help for severe or persistent diarrhoea or an allergic reaction.

18. Medical Review (Medical jaiza)

Compiled by the PakVita Editorial Team · AI-assisted drafting with editorial review · Sourced from DRAP, WHO, BNF · Last updated: 2026-10-31

19. Disclaimer (Zaroori tanbeeh)

The information on this page is for awareness only. It is not medical advice. Always consult your doctor or pharmacist before taking any medicine. PakVita is not responsible for any harm.

Explore entries related to Duphalac Syrup by ingredient, class and listed uses. These links are not recommendations to switch treatment.

Frequently Asked Questions

Duphalac Syrup kis kaam aati hai?

Duphalac Syrup contains lactulose, a laxative used to treat constipation in adults and children. Doctors also use it at higher doses for hepatic encephalopathy, a brain problem caused by severe liver disease, because it lowers ammonia levels in the blood.

Duphalac Syrup kitni leni chahiye?

For constipation, adults usually start with 15 to 45 ml a day and continue on 15 to 30 ml a day, taken once daily or split into two doses. Children's doses depend on age, for example 5 to 10 ml a day for ages 1 to 6. Follow your doctor's plan.

Pakistan mein Duphalac Syrup ka price kya hai?

Online pharmacy listings in October 2026 show about Rs. 316 for a 120 ml bottle and about Rs. 597 for a 240 ml bottle. Prices vary by pharmacy and city, so verify the current rate at a local store or online listing.

Kya Duphalac Syrup pregnancy mein safe hai?

The product information says Duphalac can be used during pregnancy and breastfeeding, because very little lactulose is absorbed into the body. Still, do not self-medicate during pregnancy; check with your doctor first.

Duphalac Syrup ke nuksanat kya hain?

Diarrhoea, wind (flatulence), stomach pain, nausea and vomiting are the usual side effects. Wind is common in the first few days and usually settles. Reduce the dose if you get diarrhoea, and get medical help for severe or persistent diarrhoea or an allergic reaction.

Sources

  1. Duphalac 3.335 g/5 ml Oral Solution - Summary of Product Characteristics (SmPC) — electronic medicines compendium (emc)
  2. Duphalac Syrup 66.7g/100ml — oladoc
  3. DRAP Registered Product Data (Public Registry) — Drug Regulatory Authority of Pakistan
  4. WHO Model List of Essential Medicines, 23rd ed. (2023) — World Health Organization
  5. British National Formulary (BNF) — BMJ Group & Pharmaceutical Press

Medical disclaimer

This page is for educational use only and does not replace professional medical advice. Always confirm diagnosis, dose, and interactions with a qualified doctor or pharmacist before starting or changing any medicine.