Last updated: March 2026
How Much Does Cephalexin Cost?
Cost Breakdown by Type
| Type / Procedure | Without Insurance | With Insurance |
|---|---|---|
| Cephalexin 250mg (generic) | $4 – $12 | $0 – $5 |
| Cephalexin 500mg (generic) | $4 – $15 | $0 – $6 |
| Cephalexin 250mg/5ml Suspension (generic) | $8 – $20 | $2 – $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 — first-generation cephalosporin; commonly used for skin and soft tissue infections
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
Generic cephalexin costs $4 to $20 for a typical course without insurance. It is widely available on $4 generic programs.
Cephalexin (Keflex) treats skin and soft tissue infections, strep throat, urinary tract infections, bone infections, and ear infections. It is well-tolerated and safe in pregnancy.
Most patients with penicillin allergy can safely take cephalexin, as true cross-reactivity is only about 1-2%. However, patients with a history of severe anaphylaxis to penicillin should avoid cephalosporins.