Claritin vs Plan B: side-by-side comparison
Claritin (Allergies et antihistaminiques) and Plan B (Hormones et contraception) 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 | Plan B |
|---|---|---|
| Active ingredient | Loratadine | Levonorgestrel |
| Manufacturer | Bayer | Foundation Consumer Healthcare |
| Class | Allergies et antihistaminiques | Hormones et contraception |
| Strengths | 5mg, 10mg | 1.5mg |
| Forms | tablet, oral syrup, orodispersible tablet | tablet |
What's the same
Claritin and Plan B 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 Allergies et antihistaminiques while Plan B belongs to Hormones et contraception. 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: La loratadine bloque sélectivement les récepteurs H1 périphériques de l'histamine, antagonisant ses effets lors des réactions allergiques. Plan B: Le mécanisme principal de Plan B est le retard ou le blocage de l'ovulation lorsqu'il est pris avant le pic de LH.
When Claritin is preferred
Claritin est autorisé chez l'adulte et l'enfant dans le traitement de la rhinite allergique saisonnière et perannuelle et de l'urticaire chronique idiopathique.
When Plan B is preferred
Plan B est indiqué en contraception d'urgence après un rapport non protégé ou un échec de contraception avéré ou suspecté, chez la femme en âge de procréer.
Questions fréquentes
Is Claritin or Plan B better? ▾
Claritin and Plan B 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 Plan B? ▾
Switching between Claritin and Plan B 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 Plan B 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
Les informations publiées sur ce site sont fournies à titre documentaire et pédagogique. Elles ne remplacent pas l'avis d'un professionnel de santé qualifié.