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Isoniazid Isoniazid 300 mg
💰 Pharmacy Cost Benchmark
$1.62 / tablet
30-day estimate: $48.72 · 90-day: $146.16
Source: NADAC (CMS) · Effective: 2026-01-21
Pricing shown is an estimate based on the active ingredient. The exact strength, dose form, and packaging may differ.
Pricing estimated from an ingredient/name-based match because no exact or sibling-family NADAC row was available.
Basis: Ingredient-level name match for isoniazid
Estimated fair retail range
$73.07 – $146.15
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)
▲ +341.2% 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.