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 104 -
2005 120  16
2006 128  8
2007 119  9
2008 120  1
2009 137  17
Year Rank Change
2010 116  21
2011 129  13
2012 151  22
2013 122  29
2014 149  27

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)
Carvedilol 24,317,623
Tamsulosin Hydrochloride 16,068,806
Doxazosin Mesylate 4,676,441
Terazosin (this drug) 4,505,687
Prazosin Hydrochloride 1,009,450
Silodosin 518,042

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
  • Hytrin
Generic Drug Synonyms and Salts
  • Terazosin Hydrochloride
  • Terazosin Hydrochloride Anhydrous
  • Terazosin

FDA Approval Information

Established Pharmacologic Class (EPC): alpha-Adrenergic Blocker
Initial FDA approval date: 8/7/1987
First FDA applicant: Abbott Laboratories Pharmaceutical Products Div
First dosage form: Tablet (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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Which of these drugs causes acute kidney injury? The Top 250 Drugs by ClinCalc Academy
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Updated Mar 4, 2017
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