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Bulk-forming laxative Pregnancy: NORMACOL may be used during pregnancy or lactation. (UK SPC §4.6)

Sterculia

Brand names: Normacol

Sterculia is a bulk-forming laxative used to treat constipation and to regulate stool consistency, including in patients with irritable bowel syndrome or a stoma.

Adult dose

Dose: Constipation, particularly simple or idiopathic constipation and constipation during pregnancy (the SPC gives one posology for all its indications): Normacol granules (sterculia BP 62% w/w) - adults 1 or 2 sachets or 1-2 heaped 5ml spoonfuls, once or twice daily after meals. Older people: as adult dose
Route: Oral (granules)
Frequency: Once or twice daily, after meals
Product: UK SPC via MHRA Products - NORMACOL (PL003225010), Norgine Limited; §2 (verbatim): 'The active ingredient is Sterculia BP 62% w/w'. The retrieved §2 does not print the sterculia weight per sachet or per 5 ml spoonful, so no per-unit gram figure is stated. §4.1 (verbatim): 'The treatment of constipation, particularly simple or idiopathic constipation and constipation during pregnancy. Management of colostomies and ileostomies. The High Residue Diet management of diverticular disease of the colon and other conditions requiring a high fibre regimen. The initiation and maintenance of bowel action after rectal and anal surgery. Administration after ingestion of sharp foreign bodies to provide a coating and reduce the possibility of intestinal damage during transit.' COVERAGE: this SPC covers Normacol granules only; other sterculia-containing products differ and are not covered. VERBATIM §4.2: 'Adults: 1 or 2 sachets or 1-2 heaped 5ml spoonfuls, once or twice daily after meals. Older people: As adult dose.' METHOD (§4.2): 'The granules should be placed dry on the tongue and without chewing or crushing, swallowed immediately with plenty of water or a cool drink. Prior to drinking they may also be sprinkled onto and taken with soft food such as yoghurt.' The SPC prints no maximum dose and no renal or hepatic adjustment, so none is given. KEY WARNINGS (§4.4): not to be taken immediately before going to bed or in a recumbent position, especially in the elderly; not to be taken for more than 4 days if there has been no movement of the bowels; take with plenty of water to reduce the risk of oesophageal obstruction and maintain adequate fluid intake; caution in ulcerative colitis; stool may appear paler than normal as a result of local contact with sterculia, which 'does not indicate anything untoward'; each dose contains 28.7 mg sodium; patients with rare hereditary problems of fructose intolerance, glucose-galactose malabsorption or sucrase-isomaltase insufficiency should not take it. The old openFDA record in this bundle (a topical 'Stretch Marks cream') was not used.

Paediatric dose

Dose: Constipation, children aged 6-12 years: one half the above (adult) amount, i.e. one half of 1 or 2 sachets or 1-2 heaped 5ml spoonfuls, once or twice daily after meals (Normacol granules; sterculia BP 62% w/w)
Route: Oral (granules)
Frequency: Once or twice daily, after meals
THIS IS THE LABEL'S OWN INSTRUCTION (SPC §4.2: 'Children: (6-12 years): one half the above amount'), expressed as a fraction of the adult amount; no per-kg or gram figure is printed and none is added. SPC §4.2: 'NORMACOL is not recommended for children under 6 years of age' - no dose is given for under-6s, and none for neonates.

Dose adjustments

Renal

No renal dose adjustment is printed in the retrieved SPC sections (§4.2-§4.4).

Hepatic

No hepatic dose adjustment is printed in the retrieved SPC sections (§4.2-§4.4).

Dose independently re-sourced from UK Summary of Product Characteristics (SPC) via MHRA Products — clinician-reviewed. Always confirm against the product SmPC and your local formulary before prescribing.

Contraindications

  • Intestinal obstruction, faecal impaction, and total atony of the colon (§4.3)
  • Known hypersensitivity to the active substances or to any of the excipients listed in section 6.1 (§4.3)

Side effects

  • Allergic reactions (§4.8)
  • Oesophageal obstruction; intestinal/colonic obstruction or impaction (§4.8)
  • Abdominal distension, flatulence, diarrhoea, nausea, abdominal pain (§4.8)
  • Possible fluid and electrolyte depletion in association with diarrhoea (§4.4)

Interactions

  • None known (§4.5)

Monitoring

  • No monitoring schedule is printed in the SPC. §4.4: caution in ulcerative colitis; maintain adequate fluid intake; if there has been no movement of the bowels, do not take for more than 4 days; avoid taking immediately before going to bed or in a recumbent position, especially in the elderly

Clinical monograph

How it works

Being an indigestible plant gum, it absorbs water in the gut to increase faecal mass, which stimulates peristalsis and softens the stool.

Prescribing in practice

  • It must be taken with plenty of fluid and is contraindicated in intestinal obstruction, faecal impaction, and reduced gut motility because of the risk of bowel or oesophageal obstruction.
  • It should not be taken immediately before going to bed, to reduce the risk of oesophageal blockage.
  • Full effect may take a few days to develop, so dosing should not be escalated prematurely.

Monitoring

No laboratory monitoring is required; assess bowel-habit response and ensure adequate fluid intake.

Counselling the patient

  • Take each dose with a full glass of water and maintain a good fluid intake through the day.
  • Do not take it just before lying down or going to bed.

Evidence & guidelines

Bulk-forming laxatives such as sterculia are recommended by NICE as first-line treatment for constipation with inadequate dietary fibre.

Reference: NICE CG99; Drug verified in RxNorm (NLM); confirm dosing against the manufacturer SPC (eMC). Verify against your local formulary and current prescribing references before prescribing. The structured dose values shown have been reviewed by a clinician. Monograph status: clinician-reviewed (2026-07-04).

Related

Curated clinical cross-links plus same-class fallbacks.