About calcium polystyrene sulphonate
Potassium-binding ion-exchange resin
Used for
- Treats high blood potassium (hyperkalemia), usually as part of broader treatment.
Usual adult dose
Usually 15 g by mouth three or four times daily; dose varies with potassium levels.
Usual dose in children
Dosing is individualized by weight and potassium levels; specialist supervision is required.
Common side effects
- Constipation, nausea, or loss of appetite
- Low calcium or magnesium
- High sodium or fluid retention
- Rare bowel injury or blockage
Important warnings
- Not suitable for emergencies requiring rapid potassium reduction.
- Avoid with bowel obstruction, severe constipation, or reduced gut movement.
- Separate other oral medicines by at least three hours.
- Monitor potassium, calcium, magnesium, and bowel function.
Pregnancy
Use only when clearly needed; pregnancy-specific safety information is limited.
Breastfeeding
Safety information is limited; use requires clinical assessment.
Interactions
- Can reduce absorption of other oral medicines; separate doses.
- Sorbitol may increase risk of severe bowel injury.
- May increase sodium burden, affecting people with heart or kidney conditions.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.