Last updated: March 2026
How Much Does Diltiazem Cost?
Cost Breakdown by Type
| Type / Procedure | Without Insurance | With Insurance |
|---|---|---|
| Diltiazem 120mg (generic) | $10 – $20 | $2 – $8 |
| Diltiazem ER 180mg (generic) | $10 – $25 | $3 – $10 |
| Diltiazem ER 240mg (generic) | $12 – $30 | $4 – $12 |
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 1-2 generic — calcium channel blocker covered on most formularies
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 diltiazem costs $10 to $30 per month without insurance. Extended-release formulations tend to be slightly more expensive than immediate-release.
Diltiazem is a calcium channel blocker used to treat high blood pressure, angina (chest pain), and certain heart rhythm disorders such as atrial fibrillation.
Yes, diltiazem comes in immediate-release tablets (taken 3-4 times daily) and several extended-release formulations (taken once or twice daily). The ER versions are more convenient but may cost slightly more.