About calcium polystyre ne
Potassium-binding cation-exchange resin
Used for
- Treats high blood potassium (hyperkalemia), usually as part of supervised care.
Usual adult dose
Oral: commonly 15 g one to four times daily; dose depends on blood potassium levels.
Usual dose in children
Oral: commonly 1 g/kg daily in divided doses; specialist-directed dosing is required.
Common side effects
- Constipation, nausea, vomiting, or loss of appetite
- Low blood potassium, calcium, or magnesium
- Rarely, intestinal blockage, injury, or tissue death
Important warnings
- Not for emergency treatment of life-threatening hyperkalemia; its effect is delayed.
- Avoid in bowel obstruction or significant constipation; serious intestinal injury can occur.
- Monitor blood potassium and other electrolytes during treatment.
- Separate other oral medicines by at least three hours, when possible.
Pregnancy
Use only when clearly needed; pregnancy data are limited.
Breastfeeding
Likely low absorption, but clinical data are limited; use requires consideration of need.
Interactions
- Sorbitol may increase the risk of severe intestinal injury.
- May reduce absorption of other oral medicines; separate doses.
- Antacids or laxatives containing magnesium or aluminum may affect treatment.
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 It may be incomplete or out of date.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.