Macrogol

Macrogol is a medication used to treat constipation by softening stools and making them easier to pass. It works by drawing water into the bowel, helping relieve constipation effectively. If you’ve been advised to take macrogol, here’s what you need to know.

What is macrogol?

Macrogol is an osmotic laxative that helps increase water content in stools, making them softer and easier to pass.

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How does macrogol work?

Macrogol absorbs water into the bowel, softening stools and stimulating natural bowel movements.

What is macrogol used to treat?

Macrogol is commonly prescribed for:

  • Constipation relief (especially when other laxatives have not worked)
  • Chronic constipation (long-term management)
  • Faecal impaction (severe constipation where stools have built up in the bowel)

Who can take macrogol?

Macrogol is suitable for most adults and children over 1 year old, depending on the condition being treated.

Who might not be able to take macrogol?

Macrogol may not be suitable if you:

  • Have a blockage in your gut (intestinal obstruction)
  • Have severe dehydration
  • Have a perforated gut or serious bowel condition

Can I take macrogol if I’m pregnant or breastfeeding?

Macrogol is considered safe during pregnancy and breastfeeding, but always check with your doctor before use.

What if I miss a dose?

If you forget a dose, take it as soon as you remember. If it’s close to your next dose, skip the missed one—do not take extra doses to make up for it.

How effective is macrogol?

Macrogol is highly effective at relieving constipation, usually working within 1 to 2 days.

What should I do if I take too much?

Taking too much macrogol can cause diarrhoea, stomach cramps, or bloating. If symptoms persist, seek medical advice.

What dose of macrogol is usually taken?

  • For constipation: One sachet daily, mixed with water, increasing to three sachets if needed
  • For faecal impaction: Up to eight sachets daily, as prescribed by a doctor

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What are the side effects of macrogol?

Common side effects include:

  • Bloating or wind (flatulence)
  • Mild stomach cramps
  • Diarrhoea (if too much is taken)

Serious side effects, such as severe dehydration or electrolyte imbalances, require urgent medical attention.

How should I take macrogol?

Macrogol is available as powder sachets, which should be dissolved in water before drinking.

When should macrogol be taken?

Macrogol should be taken at the same time each day, preferably in the morning or early afternoon.

What are the brand names for macrogol?

Macrogol is available as a generic medicine, but some branded versions include:

  • Movicol
  • Laxido
  • CosmoCol

Final thoughts

Macrogol is an effective treatment for constipation, but it should be used for short-term relief or as prescribed for long-term conditions. If symptoms persist, speak to your doctor or pharmacist.

Always consult a medical professional
This article is for informational purposes only and is not a substitute for medical advice. Always consult a healthcare professional before starting, stopping or changing any medication. If you have concerns about your medication or experience side effects, speak to your doctor or pharmacist immediately.

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