Drug Usage Statistics, United States, 2004 - 2014

Number of Prescriptions Over Time (2004 - 2014)

Rank of Top Drugs Over Time

"Rank" refers to the frequency that a given medication is prescribed within a calendar year compared to all other medications. A rank of "4" would indicate that the medication was the fourth most commonly prescribed medication.

Year Rank Change
2004 46 -
2005 38  8
2006 20  18
2007 13  7
2008 12  1
2009 10  2
Year Rank Change
2010 8  2
2011 6  2
2012 6 0
2013 6 0
2014 7  1

Patient Out-Of-Pocket Cost Over Time (2004 - 2014)

"Out-of-pocket" cost refers to the payment made by the patient (either cash price or the copay amount). This value does not include reimbursement from a third party payer (eg, Medicare or private insurance) and does not represent the total drug cost.

Usage Statistics of Related Drugs

Drug Name Total Prescriptions (2014)
Omeprazole (this drug) 71,929,303
Pantoprazole Sodium 22,864,145
Esomeprazole 14,963,819
Lansoprazole 4,895,439
Dexlansoprazole 2,402,825

Drug Synonyms

Drug synonyms are used during the sanitation and standardization process of "cleaning" the original data source (MEPS). Occassionally, brand names may be listed below that are no longer on the market or are very infrequently used.

Brand Name Synonyms
  • Prilosec
  • Prilosec Otc
Generic Drug Synonyms and Salts
  • Omeprazole Magnesium
  • Omeprazole

FDA Approval Information

Established Pharmacologic Class (EPC): Proton Pump Inhibitor
Initial FDA approval date: 9/14/1989
First FDA applicant: Astrazeneca Pharmaceuticals Lp
First dosage form: Capsule, Delayed Rel Pellets (oral)

Prescription data source: Medical Expenditure Panel Survey (MEPS) 2004-2014. Agency for Healthcare Research and Quality (AHRQ), Rockville, MD. ClinCalc DrugStats Database version 17.0. Read more about the ClinCalc DrugStats database.


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Updated Mar 4, 2017
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