Plan B vs Voltaren: side-by-side comparison
Plan B (Hormones et contraception) and Voltaren (Traitements de la douleur) 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 | Voltaren |
|---|---|---|
| Active ingredient | Levonorgestrel | Diclofenac |
| Manufacturer | Foundation Consumer Healthcare | Novartis |
| Class | Hormones et contraception | Traitements de la douleur |
| Strengths | 1.5mg | 25mg, 50mg, 75mg, 100mg |
| Forms | tablet | tablet, delayed-release tablet, topical gel, suppository |
What's the same
Plan B and Voltaren 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 Voltaren belongs to Traitements de la douleur. 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. Voltaren: Le diclofénac inhibe de façon réversible les cyclo-oxygénases COX-1 et COX-2, avec une sélectivité pour la COX-2 un peu plus marquée que celle de l'ibuprofène et du naproxène.
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 Voltaren is preferred
Voltaren est autorisé chez l'adulte dans le traitement de l'arthrose, de la polyarthrite rhumatoïde, de la spondylarthrite ankylosante, des douleurs musculosquelettiques aiguës, des douleurs postopératoires, de la dysménorrhée primaire, de la crise de migraine et de la colique né…
Questions fréquentes
Is Plan B or Voltaren better? ▾
Plan B and Voltaren 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 Voltaren? ▾
Switching between Plan B and Voltaren 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 Voltaren 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.