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Fybogel Frequently Asked Questions
It takes 2 to 3 days for Fybogel to work.
Talk to your doctor if you are still constipated after 3 days. They may be able to suggest a different medicine.
Ideally, you'll only use Fybogel occasionally and for a few days at a time. Using laxatives for longer can lead to diarrhoea. Stop taking it if you get diarrhoea.
It can also cause an electrolyte imbalance, where levels of substances like sodium, potassium and magnesium in your body get too high or too low. A severe electrolyte imbalance can cause serious health problems such as:
- muscle spasms
- seizure or fits
There are some situations where you may need to take Fybogel for many months – for instance, if you need to increase the fibre in your diet.
Your doctor will advise you exactly how long you need to take Fybogel for and how much to take.
There are various types of laxatives. Some work in a different way to Fybogel but are equally good at treating constipation.
The NICE (national institute for health and care excellence) guidelines recommend a stepped approach, so first trying bulk-forming laxatives and moving along the chain if unsuccessful and constipation symptoms remain.
- Bulk-forming (like Fybogel)- increases the weight of the stool, which makes you feel you want to go to the toilet. These laxatives take 2 or 3 days to work.
- Osmotic - draws water into the bowel, making the stool softer and easier to pass. These laxatives take at least 2 days to work.
- Stimulants (like Senokot) - stimulates the muscles of the gut, making the bowel work harder to move stools along. These laxatives take 6-12 hours to work.
Fybogel lemon, orange and plain granules are suitable for use during pregnancy sachets are suitable for use during pregnancy*. Fybogel Hi-Fibre Granules, including Lemon, Orange and Plain flavours, are suitable for use during pregnancy*. Fybogel Mebeverine Granules for Oral Suspension are not suitable for use during pregnancy.
*Medicines can affect the unborn baby. Always consult a doctor or pharmacist before taking any medicine in pregnancy.
Fybogel does not affect any type of contraception, including the combined pill and emergency contraception, unless you have severe diarrhoea for more than 24 hours.
If you have severe diarrhoea your contraceptive pills may not protect you from pregnancy. Look on the pill packet to find out what to do or contact a healthcare professional for further advice.
12 years old or a reduced dosage for children aged 6-12. Please refer to the patient information leaflet for further advice.
You can eat and drink normally with Fybogel.
It might help to eat less of foods such as pastries, puddings, sweets, cheese and cake for a while, as these foods can make constipation worse.