How Much Is Polymyxin B/Trimethoprim Without Insurance?
How much is Polymyxin B/Trimethoprim without insurance?
Without insurance, Polymyxin B/Trimethoprim typically costs from $12/month when you compare pharmacies through Script Unlock. Cash-pay prices are set by pharmacies competing directly for your prescription — no PBM, no discount card required. Most patients save 40% vs the retail sticker price at chain pharmacies.
- Chain pharmacy retail price: $20–$27/month
- Script Unlock cash price: from $12/month (40% off)
- Annual savings: up to $96/year vs retail
Polymyxin B/Trimethoprim (Polymyxin B sulfate / Trimethoprim) costs from $12/month without insurance when pharmacies compete on Script Unlock — versus $20–$27 at retail chain pharmacies. That's up to $96/year saved.
Updated July 2026 · Verified pharmacy data
Polymyxin B/Trimethoprim Cash Price Comparison — 2026
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Why is Polymyxin B/Trimethoprim so expensive without insurance?
Chain pharmacies (CVS, Walgreens, Rite Aid, Walmart) set high cash prices for Polymyxin B/Trimethoprimbecause their pricing engines are optimized for insurance-paid customers, not cash-pay patients. Cash pay at a chain often runs 3–5× the true wholesale price.
Independent pharmacies on Script Unlock — the ones bidding for your prescription — compete for your business. They don't need to protect insurance contracts. Their cash price reflects what Polymyxin B/Trimethoprim actually costs plus a fair margin. That's why Polymyxin B/Trimethoprim on Script Unlock lands at $12/month instead of $20+.