Drug Usage Statistics, United States, 2007 - 2017

Number of Prescriptions Over Time (2007 - 2017)

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
2007 182  31
2008 196  14
2009 198  2
2010 211  13
2011 183  28
2012 167  16
Year Rank Change
2013 167 0
2014 192  25
2015 178  14
2016 168  10
2017 152  16

Patient Out-Of-Pocket Cost Over Time (2007 - 2017)

"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 (2017)
Valacyclovir (this drug) 4,230,835
Acyclovir 3,769,434

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
  • Valtrex
Generic Drug Synonyms and Salts
  • Valacyclovir Hydrochloride
  • Valacyclovir

FDA Approval Information

Established Pharmacologic Class (EPC): Herpes Simplex Virus Nucleoside Analog DNA Polymerase Inhibitor, Herpes Zoster Virus Nucleoside Analog DNA Polymerase Inhibitor, Herpesvirus Nucleoside Analog DNA Polymerase Inhibitor
Initial FDA approval date: 6/23/1995
First FDA applicant: Rx
First dosage form: Tablet (oral)

Prescription data source: Medical Expenditure Panel Survey (MEPS) 2007-2017. Agency for Healthcare Research and Quality (AHRQ), Rockville, MD. ClinCalc DrugStats Database version 20.1. Read more about the ClinCalc DrugStats database.


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Updated Jul 19, 2018
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