Last updated: March 2026
How Much Does Potassium Chloride (Klor-Con) Cost?
Cost Breakdown by Type
| Type / Procedure | Without Insurance | With Insurance |
|---|---|---|
| Potassium Chloride ER 10mEq Tablet | $4 – $10 | $0 – $5 |
| Potassium Chloride ER 20mEq Tablet | $5 – $15 | $0 – $5 |
| Potassium Chloride Liquid 20mEq/15mL | $8 – $20 | $3 – $8 |
What Affects the Cost
- Brand-name vs. generic availability
- Insurance formulary tier placement
- Pharmacy choice (retail vs. mail-order vs. Costco)
- Manufacturer savings cards and coupons
- Dosage and quantity prescribed
- Geographic location
Insurance Coverage
Typical coverage: Tier 1 generic — widely covered; commonly prescribed with diuretics
Most insurance plans use a tiered formulary: Tier 1 (generic) $0-$15 copay, Tier 2 (preferred brand) $25-$75, Tier 3 (non-preferred brand) $50-$150, Tier 4 (specialty) $100-$500+. Prior authorization may be required for certain medications. Step therapy may require trying cheaper alternatives first.
How to Save Money
- Always ask for generic when available — saves 50-90%
- Use GoodRx, RxSaver, or similar discount cards
- Costco pharmacy is open to non-members and often has lowest prices
- Mark Cuban's Cost Plus Drugs offers transparent low pricing
- Manufacturer patient assistance programs provide free medication to qualifying patients
- HSA/FSA funds can cover medication costs tax-free
Related Procedures & Costs
Frequently Asked Questions
Potassium chloride costs $4 to $15 for a 30-day supply without insurance. Extended-release tablets are the most commonly prescribed form.
Potassium chloride replaces potassium lost from diuretic medications (water pills), certain kidney conditions, or inadequate dietary intake. Low potassium can cause dangerous heart rhythm problems.
Common side effects include nausea, stomach pain, and diarrhea. Take with food and a full glass of water. Do not crush extended-release tablets as this can cause stomach irritation.