Estrogens, Conjugated

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 23 -
2005 37  14
2006 58  21
2007 59  1
2008 67  8
2009 80  13
Year Rank Change
2010 96  16
2011 98  2
2012 132  34
2013 106  26
2014 109  3

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)
Estradiol 13,220,499
Estrogens, Conjugated (this drug) 6,938,375
Estradiol; Norethindrone 893,636

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
  • Premarin
Generic Drug Synonyms and Salts
  • Estrogens, Conjugated

FDA Approval Information

Established Pharmacologic Class (EPC): Estrogen
Initial FDA approval date: Prior to January 1, 1982
First FDA applicant: Wyeth Pharmaceuticals Inc
First dosage form: Cream (topical, vaginal)

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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