Guaifenesin Tablet, Extended Release
Pricing Report NDC 51660-566-21

Current Package Pricing Information

The current wholesale acquisition cost for Guaifenesin (NDC 51660-566-21) is $0.29118 per EA. This benchmark price is based on the National Average Drug Acquisition Cost (NADAC) and has been effective since Jun 17, 2026.

As a a human over the counter drug provided by Ohm Laboratories, Inc., this medication is distributed in a 20 TABLET, EXTENDED RELEASE in 1 CARTON configuration. The pricing data is derived from C/I - Chain or Independent Pharmacy surveys, reflecting the actual invoice prices paid by community pharmacies to drug wholesalers.

Historical Pricing Trends & Acquisition Cost Benchmarks

Since Jul 2023, the NADAC wholesale price for (NDC ) has moved within a range of $0.28120 to $0.39928 per EA. Over this 2 years and 10 months period, the pricing trend reflects the shifting acquisition costs reported by retail and chain pharmacies to the Centers for Medicare and Medicaid Services (CMS). The following interactive chart and historical table detail every recorded price adjustment based on these federal surveys.

Understanding NADAC Pricing Data

The National Average Drug Acquisition Cost (NADAC) is compiled by the Centers for Medicare and Medicaid Services (CMS). This data is derived from random monthly surveys of more than 60,000 pharmacies across all 50 states.

Important Price Distinction:

The prices listed on this page represent the wholesale invoice price paid by pharmacies to acquire the drug. This is NOT the retail price paid by consumers at the pharmacy counter. Final patient costs typically include pharmacy markups, professional dispensing fees, and insurance adjustments.

NADAC Pricing Data Last Updated on: July 08, 2026