Azathioprine

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 228 -
2005 224  4
2006 275  51
2007 326  51
2008 354  28
2009 281  73
Year Rank Change
2010 270  11
2011 320  50
2012 260  60
2013 252  8
2014 226  26

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)
Azathioprine (this drug) 2,670,659

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
  • Azasan
  • Imuran
Generic Drug Synonyms and Salts
  • Azathioprine Sodium
  • Azathioprine

FDA Approval Information

Established Pharmacologic Class (EPC): Purine Antimetabolite
Initial FDA approval date: Prior to January 1, 1982
First FDA applicant: Sebela Ireland Ltd
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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Updated Mar 4, 2017
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