Plan B vs Claritin: side-by-side comparison
Plan B (Hormones et contraception) and Claritin (Allergies et antihistaminiques) belong to different therapeutic classes and are rarely interchangeable. This page compares the medications' purposes, mechanisms and the situations where each is used.
| Property | Plan B | Claritin |
|---|---|---|
| Active ingredient | Levonorgestrel | Loratadine |
| Manufacturer | Foundation Consumer Healthcare | Bayer |
| Class | Hormones et contraception | Allergies et antihistaminiques |
| Strengths | 1.5mg | 5mg, 10mg |
| Forms | tablet | tablet, oral syrup, orodispersible tablet |
What's the same
Plan B and Claritin 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
Plan B belongs to Hormones et contraception while Claritin belongs to Allergies et antihistaminiques. 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
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. Claritin: La loratadine bloque sélectivement les récepteurs H1 périphériques de l'histamine, antagonisant ses effets lors des réactions allergiques.
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.
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.
Questions fréquentes
Is Plan B or Claritin better? ▾
Plan B and Claritin 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 Plan B to Claritin? ▾
Switching between Plan B and Claritin 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 Plan B and Claritin 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 Plan B 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.