Movicol Liquid Orange Flavour (Sodium Hydrogen Carbonate, Potassium Chloride, Sodium Chloride, Macrogol 3350)

• Movicol Liquid Orange Flavour, containing macrogol 3350, works as an osmotic laxative to manage conditions characterized by hard stool and delayed bowel transit.
• Constipation: softens stool and promotes regular bowel movements, helping relieve occasional or chronic constipation.
• Faecal impaction: facilitates the breakdown and evacuation of hardened fecal masses in the colon.

• Macrogol 3350 is a high‑molecular‑weight polyethylene glycol that is not absorbed from the gastrointestinal tract. It remains in the lumen and exerts an osmotic effect, increasing the water content of intestinal contents. The resulting rise in osmotic pressure draws water into the bowel, softening the stool and expanding the intestinal volume, which stimulates peristalsis and facilitates bowel evacuation.

Macrogol 3350 may be associated with a range of adverse reactions, most of which are mild and transient.

Common Side Effects

• Abdominal bloating: feeling of fullness or swelling in the abdomen.
• Nausea: mild to moderate sensation of unease or urge to vomit.
• Flatulence: increased intestinal gas leading to passing of wind.
• Diarrhoea: loose, watery stools occurring especially with higher doses.

Serious or Rare Side Effects

• Electrolyte imbalance: abnormal levels of sodium, potassium or chloride that may require medical attention.
• Severe dehydration: marked loss of body fluids leading to dizziness or low blood pressure.
• Allergic reaction: rash, itching, swelling or difficulty breathing indicating hypersensitivity.
• Intestinal perforation: rare but serious tearing of the bowel wall requiring emergency care.

When prescribing Movicol Liquid Orange Flavour, healthcare professionals should consider several precautionary measures to ensure safe use.

• Assess renal function: evaluate kidney performance before initiating therapy, especially in patients with chronic kidney disease.
• Monitor electrolytes: check serum sodium, potassium and chloride periodically during treatment.
• Use with caution in dehydration: avoid or correct fluid deficits prior to administration.
• Avoid in intestinal obstruction: contraindicated in mechanical blockage of the bowel.
• Review concomitant medications: consider potential interactions that may affect fluid or electrolyte balance.
• Store at ambient temperature: keep below 25 °C in the original container, protect from moisture and direct sunlight.

Macrogol 3350 can interact with other medicines, altering its efficacy or increasing the risk of adverse events.

Major Interactions (Avoid)

• Other osmotic laxatives: combined use may cause excessive fluid loss and severe diarrhoea.
• Loop diuretics: concurrent use can exacerbate electrolyte disturbances, particularly hypokalaemia.
• Lithium therapy: increased renal clearance may reduce lithium levels, risking loss of therapeutic effect.

Moderate Interactions (Monitor Closely)

• NSAIDs: may impair renal function, heightening the risk of dehydration when used together.
• ACE inhibitors or ARBs: combined effect on potassium balance warrants periodic monitoring.
• Antacids containing sodium: additional sodium load can affect overall electrolyte status.