Claritin vs Lexapro: side-by-side comparison
Claritin (Allergy and Antihistamines) and Lexapro (Anti-Depressants) belong to different therapeutic classes and are rarely interchangeable. This page compares the medications' purposes, mechanisms and the situations where each is used.
| Property | Claritin | Lexapro |
|---|---|---|
| Active ingredient | Loratadine | Escitalopram |
| Manufacturer | Bayer | Forest/Allergan |
| Class | Allergy and Antihistamines | Anti-Depressants |
| Strengths | 5mg, 10mg | 5mg, 10mg, 20mg |
| Forms | tablet, oral syrup, orodispersible tablet | tablet |
What's the same
Claritin and Lexapro are used in very different patients, and the points in common are limited. The main shared element is that both meet regulatory standards for efficacy and safety and benefit from pharmacist oversight.
Key differences
Claritin belongs to Allergy and Antihistamines while Lexapro belongs to Anti-Depressants. Indications, mechanisms and target populations differ. The comparison is most useful when a clinician has mentioned both medications and the patient wants to understand where each fits.
Mechanism and action
Claritin: Loratadine selectively blocks peripheral H1 histamine receptors, antagonising histamine effects during allergic reactions. Lexapro: Lexapro acts by selectively inhibiting the serotonin reuptake transporter (SERT) at the synapse, increasing serotonin availability for postsynaptic receptors.
When Claritin is preferred
Claritin is approved in adults and children for the treatment of seasonal and perennial allergic rhinitis and chronic idiopathic urticaria.
When Lexapro is preferred
Lexapro is approved for major depressive disorder and generalised anxiety disorder in adults and adolescents 12 years and older (depression) and adults (generalised anxiety).
Frequently asked questions
Is Claritin or Lexapro better? ▾
Claritin and Lexapro are not interchangeable — they treat different conditions. Asking which is "better" is meaningful only when a clinician has weighed both for the same specific clinical scenario.
Can I switch from Claritin to Lexapro? ▾
Switching between Claritin and Lexapro is rarely an appropriate decision since they belong to different classes and treat different conditions. The real question is usually whether the diagnosis calls for one medication or the other — which the prescriber resolves.
Do Claritin and Lexapro have the same side effects? ▾
No — they belong to different classes and have distinct side-effect profiles. Each medication has its own prescribing information.
More Claritin comparisons
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.