How Much Does Colistin Cost?
Colistin (Colistimethate sodium) costs from $138/month when pharmacies compete on Script Unlock — vs $300 or more at chain pharmacies without insurance.
Updated May 2026 · Verified pharmacy data
Colistin Price Comparison 2026
Chain pharmacy retail$300–$420
Coupon app price (approx)$179–$248
Script Unlock cash pricefrom $138
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Frequently Asked Questions
How much does Colistin cost without insurance?
Colistin (Colistimethate sodium) costs from $138 per month without insurance when you compare pharmacy cash prices on Script Unlock. The retail price at chain pharmacies can be $300 or more. Comparing pharmacies saves you up to 54%.
Why do Colistin prices vary so much between pharmacies?
Each pharmacy sets its own cash price for Colistin. Large chain pharmacies often charge significantly more than independent pharmacies for the same medication. Script Unlock creates real competition — pharmacies bid to fill your prescription, driving the price to its true floor.
Is there a generic version of Colistin that costs less?
Yes — generic Colistimethate sodium is FDA-approved and bioequivalent to brand-name Colistin. Generic versions typically cost significantly less. Compare generic prices at scriptunlock.com.
How can I get the lowest price on Colistin?
Upload your Colistin prescription to Script Unlock — verified pharmacies will compete with their best cash price. You choose the lowest bid. No coupons, no insurance card, no data sharing. Most patients save 54% or more vs retail.