Prices on Popular Drugs Increase by Nearly 10% in Just One Month: GoodRx Monthly Report

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Tori Marsh
Tori Marsh, MPH, is on the Research Team at GoodRx, and is the resident expert on drug pricing and savings.
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Another month, another round of price increases. This September, six popular drugs saw substantial price increases, by as much as 9.8% in some cases.

The GoodRx Index also featured the following trends in the month of September:



Six popular drugs saw large price increases

In August, four drugs saw substantial price increases, and after this September, we have another six to add to the list.

These prices are based on the list price—the price set by the drug manufacturer.



Fills for cold, flu and sinus infection drugs increase

This September, prescriptions for popular antibiotics and cough medications increased substantially, marking the beginning of flu season. Fills for benzonatate, a prescription-strength cough medication, increased by 35% this September, while fills for popular antibiotics azithromycin (Z-Pak) and amoxicillin/potassium clavulanate increased by 19% and 13%, respectively.

Prescriptions for flu vaccine Tamiflu have also increased, with fills nearly doubling in just one month from August to September. This tracks closely to what we saw at the beginning of last year’s flu season, indicating that we could be in for another rough year.


The 10 most popular drugs in September

Here were the 10 most popular drugs in September based on a representative sample of fills at US pharmacies. They reflect overall US prescriptions, not fills using GoodRx.

  1. Atorvastatin
  2. Levothyroxine
  3. Lisinopril
  4. Amlodipine
  5. Hydrocodone/acetaminophen
  6. Ibuprofen
  7. Omeprazole
  8. Losartan
  9. Ventolin
  10. Prednisone



The 10 most expensive drugs in September

These were the 10 most expensive outpatient drugs in September based on list prices for a typical one-month prescription.

  1. Actimmune – $53,321
  2. Daraprim – $45,000
  3. Cinryze – $44,140
  4. Chenodal – $42,750
  5. Myalept – $42,137
  6. H.P. Acthar – $38,892
  7. Juxtapid – $36,992
  8. Firazyr – $32,468
  9. Harvoni – $31,500
  10. Cuprimine – $31,426


Other news from September



This data reflects overall US prescriptions (not fills using GoodRx) and comes from several sources, including pharmacies and insurers, providing a representative sample of nationwide claims.


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