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Isoniazid 300 mg
NDC: 00555-0071-01
💰 Pharmacy Cost Benchmark
$3.36 / tablet
30-day estimate: $100.74 · 90-day: $302.22
Source: NADAC (CMS) · Effective: 2026-05-20
Estimated fair retail range
$151.10 – $302.21
For a typical 30-day supply (1 unit/day).
🔄 Compare Alternatives
| Drug | Per-unit cost | 30-day supply |
|---|---|---|
| generic — isoniazid 300 MG Oral Tablet← cheapest | $3.23 / EA | $96.88 |
📈 Price History (last 12 months)
▲ +2004.4% since Nov 2013
⚠️ Important
- NADAC reflects pharmacy acquisition cost, not your out-of-pocket cost.
- Actual prices vary by pharmacy, insurance, and location.
- This is not medical advice. Always consult your pharmacist.