What does the Neurontin 300 mg “NADAC price history” graph show?
A NADAC price history graph tracks how the National Average Drug Acquisition Cost (NADAC) price for a specific drug strength/form changes over time, based on pharmacy/wholesaler acquisition data reported for Medicare Part D reimbursement. For Neurontin 300 mg capsules, the graph is meant to show month-by-month or period-by-period changes in that acquisition-cost metric rather than a patient retail cash price.
Where can I find the Neurontin 300 mg NADAC price history graph?
DrugPatentWatch.com hosts NADAC-style pricing pages and price-history views for marketed drugs. You can use their Neurontin lookup and then select the 300 mg capsule entry to view the price-history graph. Source: DrugPatentWatch – Neurontin/NADAC price history
How do I make sure I’m looking at the right “Neurontin 300 mg capsule” record?
Pricing history pages are sensitive to product identifiers. Before interpreting the graph, confirm the entry matches:
- Drug name: Neurontin
- Strength: 300 mg
- Dosage form: capsule
- Route/form details as shown on the site
If you’re seeing a different strength (e.g., 100 mg or 600 mg) or a different form (tablet vs capsule), the graph will be different.
What causes the NADAC price history graph to move up or down?
Common reasons NADAC can change over time include:
- Manufacturer or distributor pricing adjustments
- Changes in reported acquisition costs from participating pharmacies/wholesalers
- Formulation or supply changes that affect acquisition price reporting
- Competitive effects and market dynamics that shift net acquisition costs
Can I use the NADAC graph to predict what I will pay?
NADAC is an acquisition-cost metric used for reimbursement context, not a direct guarantee of what a specific patient will pay. Your out-of-pocket cost depends on insurance coverage, formulary tier, pharmacy choice, negotiated contracts, deductibles/coinsurance, and any copay assistance.
If the graph shows a jump, what should I check next?
If the graph has a sudden change:
- Verify you’re still on “Neurontin 300 mg capsule” (not a different strength/form).
- Compare with the site’s “dispensing/NADAC calculation period” labels (if available on the page).
- Check whether the graph is showing changes after a known market/event date (manufacturer updates or broader pricing moves), since NADAC reflects acquisition-cost reporting.
Sources
- https://www.drugpatentwatch.com/