Desloratadine: Side Effects, Uses & Monitoring
Seasonal Allergic RhinitisCLARINEX is indicated for the relief of the nasal and non-nasal symptoms of seasonal allergic rhinitis in patients 2 years of age and older.
- Data source
- FDA labeling via NIH DailyMed (label 4b546121…)
- Label version
- current
- Last reviewed
- 2026
Reported adverse reactions
Reactions listed in current FDA labeling, with the highest frequency reported across summarized placebo-controlled trials.
| Adverse reaction (as reported in labeling) | Reported frequency* |
|---|---|
| Pharyngitis | 4.1% |
| Dry mouth | 3% |
| Myalgia | 2.1% |
| Fatigue | 2.1% |
| Somnolence | 2.1% |
| Dysmenorrhea | 2.1% |
*Highest percentage reported for the active moiety across placebo-controlled trial tables in current FDA labeling. Values reflect trial reporting, not your individual risk.
Labeled uses (from FDA prescribing information)
Seasonal Allergic RhinitisCLARINEX is indicated for the relief of the nasal and non-nasal symptoms of seasonal allergic rhinitis in patients 2 years of age and older. Perennial Allergic RhinitisCLARINEX is indicated for the relief of the nasal and non-nasal symptoms of perennial allergic rhinitis in patients 6 months of age and older. Chronic Idiopathic UrticariaCLARINEX is indicated for the symptomatic relief of pruritus, reduction in the number of hives, and size of hives, in patients with chronic idiopathic urticaria 6 months of age and older.
Conditions associated with Desloratadine in labeling
Frequently Asked Questions
What is Desloratadine used for?
FDA labeling lists the approved uses shown above under "Labeled uses." This summary is informational; only a qualified prescriber can determine whether a medication is appropriate for you.
What are the most commonly reported side effects of Desloratadine?
The table above shows adverse reactions and the highest frequencies reported in placebo-controlled trials summarized in current FDA labeling for Desloratadine. Individual risk varies.
Does Desloratadine require lab monitoring?
Monitoring needs vary. Ask your healthcare provider whether any lab tests apply while taking Desloratadine.
Where does this information come from?
All clinical facts on this page were extracted from the current FDA-registered product labeling for this ingredient, published by manufacturers through NIH DailyMed. See the source link below.
Medical disclaimer: Educational content extracted from public FDA labeling. Not medical advice. Always consult a qualified healthcare professional before starting, stopping, or changing any medication.