Fybogel Orange
  • Fybogel Lemon
  • Fybogel Orange
  • Fybogel Hi-Fibre Orange
  • Fybogel Natural


From £3.29

Product features

  • Natural Fibre
  • Relieves and prevents constipation
  • Comes in Natural, Orange, Lemon, Hi-Fibre Lemon and Hi-Fibre Orange Flavours


Buy Fybogel Online

You can buy Fybogel online from our UK registered pharmacy. We have a variety of flavours and sizes available to suit all people. We can quickly get Fybogel to you to relieve your constipation comfortably. Simply add to the basket and we can send the medicine to you directly through the mail, right to your door.

What is Fybogel?

Fybogel provides natural relief from constipation through the active ingredient Ispaghula Husk. This is a natural way of increasing fibre in your diet. Having a high fibre diet promotes regular bowel movements naturally with your body. It promotes healthy bowel function without the need for stimulant laxatives which can cause straining, discomfort or unnatural urgency.

As the medicine contains natural fibre, it may be used to relieve constipation during pregnancy as well as helping to maintain a normal bowel function in those who suffer from haemorrhoids (piles).

How does Fybogel work?

Fybogel works naturally to relieve constipation by increasing fibre. Fibre increases the weight and size of your stool and softens it. This makes them more regular and easier to pass.

Is Fybogel effective?

A study has shown that increasing fibre intake increases the number of stools that you pass. Another study showed that 77% of those who suffer from chronic constipation got some relief from increasing fibre intake. As Fybogel is not a stimulant laxative it can take up to three days to show an effect. It is best used for chronic or mild constipation. For faster results consider an alternative laxative.

Is Fybogel weight loss treatment?

Fybogel is not recommended to be used as part of a weight loss plan.  Consult your doctor or healthcare professional for advice on weight loss and healthy living.

Fybogel pregnancy and breastfeeding.

Fybogel can be used during pregnancy and breastfeeding. Speak to your pharmacist or healthcare professional for advice before taking this product.

Fybogel contains 16mg aspartame in each sachet. Aspartame is a source of phenylalanine. It may be harmful if you have PKU (phenylketonuria), a rare genetic disorder in which phenylalanine builds up because the body can have problems removing it.

Fybogel Side Effects

As with all medicines, Fybogel can cause side effects which not everybody will experience. 

Reported side effects include,

  • Red and itchy eyes, skin rash and runny/blocked nose. 
  • Increased flatulence and wind (flatulence and bloating) during the first few days of taking the product.
  • Allergic reaction including breathing difficulties, wheezing,coughing, skin rash and itching.
  • Fybogel contains allergens and it is possible to come in contact with them via the skin.  If symptoms suddenly appear contact your GP or health professional.

If you experience any other side effects while taking Fybogel, consult your doctor or pharmacist.

Fybogel warnings

If you are allergic to any of the ingredients or if you are suffering from muscle weakness, bowel blockage or muscle weakness of the bowel wall, avoid taking Fybogel.

This product contains aspartame which contains a source of phenylalanine.  This can be harmful to individuals with phenylketonuria.If you suffer from phenylketonuria then  avoid taking Fybogel.

 Please read the Product Information Leaflet before taking any this medicine andconsult your doctor of any treatments or medication you are taking or intend to take.

Fybogel alternatives

Depending on what type of constipation you have an alternative medicine may be more effective. You should speak to your doctor or pharmacist about what option may be best for you.

Some alternative constipation treatments are:


Can you take Fybogel every day?

If dietary fibre is insufficient and you suffer from chronic constipation you may choose to use Fybogel every day. You should consult your doctor to ensure they are aware of your long term management solution.

How long does Fybogel take to work?

It may take up to 3 days to work as the fibre builds up the stool and keep it soft. It is not a stimulant laxative that will work right away.

Is Fybogel mebeverine?

This product contains ispaghula husk and does not contain mebeverine. Fybogel with mebeverine is available from Simple Online Pharmacy here.

Can I purchase Fybogel anywhere else?

We are confident that Simple Online Pharmacy offers Fybogel Powder at the best value price possible.  However if you would like to compare against some of our competitors search “Fybogel Tesco” or “Fybogel Boots” on Google.

Are there other varieties of Fybogel available?

Fybogel orange is available alongside the Fybogel natural and Lemon variety. Fybogel hi fibre orange is also available here.

Can you take Fybogel everyday?

Fybogel is not recommended for long term use.  This medicine is to be used when fibre is required in your diet to help relieve constipation.  

Speak to your doctor or GP if symptoms do not ease after three days.

Can I use Fybogel for diverticulitis Treatment?

Speak to your GP or healthcare professional for advice and guidance on any diverticulitis treatment. 

Side Effects

Fybogel side effects

As with all medicines, there is potential for some side effects, although not everyone will experience them.

Some side effects you may experience from this treatment could be:

  • Bloating
  • Flatulence

These side effects usually only last the first few days of treatment before resolving. If they do no resolve or you experience any other side effects, speak to your doctor or pharmacist.

Info Leaflet

Before using any medicine you should read the patient information leaflet to ensure you are aware of all provided information.


How to take Fybogel

For Adults and children aged over 12:

Take one sachet in the morning and one in the evening. The dose of fybogel can vary if instructed by a health professional. Follow the general instructions unless otherwise advised.
Mix the sachet in 150mL of cold water and preferably take after meals.

Children aged 6 to 12 years:

Take half to one level 5mL spoonful in the morning and evening or as directed by a health professional. The dose may vary based on the child’s age and weight.

Mix the sachet in 150mL of cold water and preferably take after meals.

If not improvement is seen within three days, please consult your doctor.

Please note that this medicine is not suitable for those under 6 years old.


Do not take Fybogel if you:

  • Are allergic to any of the listed ingredients
  • Have had a sudden change in bowel habits that has lasted for more than two weeks
  • Have bowel obstructions such as faecal impaction
  • Have difficulty swallowing
  • Have weakness in the bowel walls
  • Have a naturally slower gut motility
  • Have phenylketonuria as Fybogel is a source of phenylalanine

Other Medicines and Fybogel

Do not take this medicine if you take medicines that may cause constipation such as opioids. 

Do not take this medicine within 30 to 60 minutes of insulin or thyroid medicines as it can affect the dose of these medications. Consult your doctor for more information.


Fybogel Ingredients

Each single-dose sachet contains 3.5g Ispaghula Husk.

Other ingredients are potassium bicarbonate, sodium bicarbonate, citric acid, riboflavin sodium phosphate, beta-carotene, aspartame (E951), flavouring agents, saccharin sodium, polysorbate 80 and silica colloidal anhydrous.

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