Osmotic bowel cleanser
Citric acid with magnesium carbonate
Brand names: Citramag
Adult dose
Dose: 1 sachet at 7am and 1 sachet at 3pm on day before procedure
Route: PO
Frequency: course
Clinical pearls
- Use with appropriate fluid intake to maintain hydration
Contraindications
- Severe renal impairment
- Bowel obstruction/perforation
- Severe heart failure
Side effects
- Electrolyte disturbance
- Dehydration
- Abdominal pain
- Hypermagnesaemia
Interactions
- Lithium
- Tetracyclines
- Quinolones
- Penicillamine
Reference: BNF; https://bnf.nice.org.uk/drugs/citric-acid-with-magnesium-carbonate/. Verify against your local formulary and the latest BNF before prescribing.
Related
Curated clinical cross-links plus same-class fallbacks.
Calculators
- Harvey-Bradshaw Index for Crohn's Disease · Inflammatory Bowel Disease
- Mayo Score for Ulcerative Colitis Activity · Inflammatory Bowel Disease
- Rome IV Criteria for Irritable Bowel Syndrome · Functional GI
- Crohn's Disease Activity Index (CDAI) · Inflammatory Bowel Disease
- Truelove and Witts Severity Index for Ulcerative Colitis · Inflammatory Bowel Disease
- Ulcerative Colitis Endoscopic Index of Severity (UCEIS) · Inflammatory Bowel Disease
Drugs
Pathways
- Lower Gastrointestinal Bleed · BSG 2019; NICE NG141
- Variceal Upper GI Bleed · BSG 2015; Baveno VII (2022)
- Spontaneous Bacterial Peritonitis (SBP) · BSG / EASL 2018
- Hepatorenal Syndrome · EASL 2018; ICA 2015
- Hepatic Encephalopathy · EASL 2014; West Haven criteria
- Clostridioides difficile Colitis · NICE NG199 (2021); IDSA/SHEA 2021