About potassium chloride
Potassium supplement and electrolyte replacement
Used for
- Prevention or treatment of low blood potassium (hypokalemia), including some cases caused by medicines.
Usual adult dose
Usually 40–100 mEq daily in divided doses for prevention; treatment doses depend on blood levels and cause.
Usual dose in children
For children able to swallow tablets, dose is individualized by weight and blood potassium; liquid is often used instead.
Common side effects
- Nausea or vomiting
- Abdominal discomfort or diarrhea
- High blood potassium, which can affect heart rhythm
- Irritation, ulcers, or bleeding in the digestive tract
Important warnings
- Take with food and a full glass of water; swallow tablets whole.
- Do not use with high blood potassium or severe kidney impairment unless specifically directed.
- Seek urgent care for severe abdominal pain, vomiting, black stools, weakness, or an irregular heartbeat.
- Blood potassium and kidney function may need monitoring during treatment.
Pregnancy
Potassium is generally compatible with pregnancy when needed; treatment should be guided by blood levels and a clinician.
Breastfeeding
Potassium is generally compatible with breastfeeding when used appropriately.
Interactions
- Potassium-sparing diuretics, such as spironolactone, can dangerously raise potassium.
- ACE inhibitors and ARBs can increase potassium levels.
- NSAIDs may increase potassium, especially with kidney problems.
- Anticholinergic medicines may increase tablet-related digestive irritation.
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 It may be incomplete or out of date.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.