From the official label (Apr 2026). Your prescription and pharmacist come first.
What the official label says. If a doctor prescribed it, follow the prescription. Your pack's leaflet comes first if it is different.
• relieves constipation (irregularity) • helps to restore and maintain regularity • for treating bowel disorders when recommended by a doctor • generally provide effect in 12-72 hours
• abdominal pain, nausea or vomiting • a sudden change in bowel habits that persists over a period of 2 weeks • sensitivity to any of the ingredients
CHOKING: taking this product without adequate fluid may cause it to swell and block your throat or esophagus and may cause choking. Do not take this product if you have difficulty in swallowing. If you experience chest pain, vomiting, or difficulty in swallowing or breathing after taking this product, seek immediate medical attention. Ask a doctor before use if you have • abdominal pain, nausea or vomiting • a sudden change in bowel habits that persists over a period of 2 weeks • sensitivity to any of the ingredients Stop use and ask a doctor if • you have rectal bleeding • you fail to have a bowl movement after use. • These could be signs of a serious condition. …
• you have rectal bleeding • you fail to have a bowl movement after use. • These could be signs of a serious condition.
Keep out of reach of children.
Take it when you remember, unless it is nearly time for the next dose. Then skip the missed one. Never take two doses at once to make up for it. Check your leaflet, as some medicines are different.
Products with Methylcellulose as the active ingredient. Names differ between countries.
Other countries: check your pack's registration number and we point you to your regulator.
Type the registration number on the pack, or scan it with your camera.
• relieves constipation (irregularity) • helps to restore and maintain regularity • for treating bowel disorders when recommended by a doctor • generally provide effect in 12-72 hours (From the official U.S. FDA label.)
Follow your prescription or the leaflet in your pack. The official label says: • MIX THIS PRODUCT (CHILD OR ADULT DOSE) WITH AT LEAST 8 OUNCES (A FULL GLASS) OF WATER OR OTHER FLUID. TAKING THIS PRODUCT WITHOUT ENOUGH LIQUID MAY CAUSE CHOKING. SEE CHOKING WARNING • use product at the first sign of constipation or irregularity • put one dose in a full glass of cold water • stir briskly and drink promptly • drinking another glass of water is helpful Age Dos…
In many countries Methylcellulose is sold without a prescription in some strengths. Rules differ by country, so ask a pharmacist.
Methylcellulose is sold under names such as Citrucel, Fiber Therapy. Brand names differ between countries.
The official label lists: • you have rectal bleeding • you fail to have a bowl movement after use. • These could be signs of a serious condition. Tell your doctor about any side effect that bothers you or does not go away.
The label gives a separate dose by age: children above 12 years. Check the pack or ask a pharmacist.
Scan the registration number on your pack with PillVera (NAFDAC number in Nigeria, NDC in the United States, DIN in Canada), check the expiry date and buy only from licensed pharmacies.
This page shows what official sources say, in plain words. It is not medical advice: your prescription and your doctor or pharmacist come first. Brand names, strengths and rules differ between countries.