Carbidopa; Levodopa

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 178 -
2005 182  4
2006 161  21
2007 168  7
2008 230  62
2009 171  59
Year Rank Change
2010 196  25
2011 192  4
2012 217  25
2013 216  1
2014 207  9

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)
Carbidopa; Levodopa (this drug) 2,959,540

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
  • Carbidopa And Levodopa
  • Carbilev
  • Duopa
  • Parcopa
  • Rytary
  • Sinemet
  • Sinemet CR
Generic Drug Synonyms and Salts
  • Levodopa; Carbidopa
  • Carbidopa; Levodopa

FDA Approval Information

Established Pharmacologic Class (EPC): Aromatic Amino Acid Decarboxylation Inhibitor
Initial FDA approval date: Prior to January 1, 1982
First FDA applicant: Merck Sharp And Dohme Corp
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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