Drug Usage Statistics, United States, 2013 - 2021

Desloratadine Summary for 2021

Top drug rank #347 ( 61)
Estimated number of prescriptions in the United States (2021) 108,857
Estimated number of patients in the United States (2021) 20,998
Average total drug cost (USD)  
Per prescription $35.67
Per day of therapy $0.80/day
Average out-of-pocket cost (USD)  
Per prescription $22.38
Per day of therapy $0.49/day

Total Prescriptions and Patients Per Year (2013 - 2021)

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
2013 336  33
2014 391  55
2015 391 0
2016 387  4
Year Rank Change
2017 399  12
2018 387  12
2019 381  6
2020 408  27
2021 347  61

Drug Cost Over Time (2013 - 2021)

  • Cost Per Prescription Fill: Average cost per filled prescription regardless of how many days of therapy the prescription is filled for (e.g. 10 days, 30 days, 90 days, etc.)
  • Cost per Day of Therapy: The average cost per prescription fill divided by the days of therapy. For example, a 10-day antibiotic course costing $30 would be $3 per day. Similarly, a 30-day supply of an oral antihypetensive costing $30 would be $1 per day.

  • Total cost: The average total cost of the medication including the out-of-pocket cost (see below) plus the amount paid by other parties (Medicare, Medicaid, private insurance, Veterans Administration, TRICARE, other state/federal sources, Worker's compensation, and other miscellaneous sources)
  • Out-of-pocket cost: The average payment made by the patient which may include deductibles, coinsurance, copayments, or the cash price paid without insurance coverage.

Cost Per Prescription Fill (USD)

Cost Per Day of Therapy (USD/day)

Distribution of Dispensed Dosage Forms (2021)

Dosage Form Strength % of Dispensed Products
Tablet/capsule 5 mg 100.0%

Distribution of Days Supplied (2021)

"Days supply" is defined as the number of days that a prescription should last. For example, a prescription of 60 tablets that is taken twice daily has a day supply of 30 days.

Related Drugs

Drug Name Total Prescriptions (2021)
Cetirizine 13,929,421
Azelastine 4,011,209
Levocetirizine 2,550,953
Fexofenadine 1,232,280
Fexofenadine; Pseudoephedrine 829,016
Azelastine; Fluticasone 274,995
Desloratadine (this drug) 108,857
Carbinoxamine 70,370
Cetirizine; Pseudoephedrine 66,267
Chlorpheniramine; Hydrocodone 52,828
Chlorpheniramine; Phenylephrine 39,904
Chlorpheniramine; Codeine; Phenylephrine 12,423
Bepotastine 5,747
Diphenhydramine; Zinc 0

Therapeutic Classes

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
  • Clarinex
Generic Drug Synonyms and Salts
  • Desloratadine

FDA Approval Information

Established Pharmacologic Class (EPC): Histamine-1 Receptor Antagonist
Initial FDA approval date: 12/21/2001
First FDA applicant: Rx
First dosage form: Tablet (oral)

Prescription data source: Medical Expenditure Panel Survey (MEPS) 2013-2021. Agency for Healthcare Research and Quality (AHRQ), Rockville, MD. ClinCalc DrugStats Database version 2024.01. Read more about the ClinCalc DrugStats database.

All ClinCalc DrugStats figures and graphs on this page are licensed under Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0).


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Updated Sep 12, 2021
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