Synthroid vs Provera: side-by-side comparison
Synthroid (Hormone und Empfängnisverhütung) and Provera (Sexuelle Gesundheit der Frau) belong to different therapeutic classes and are rarely interchangeable. This page compares the medications' purposes, mechanisms and the situations where each is used.
| Property | Synthroid | Provera |
|---|---|---|
| Active ingredient | Levothyroxine | Medroxyprogesterone |
| Manufacturer | AbbVie | Pfizer |
| Class | Hormone und Empfängnisverhütung | Sexuelle Gesundheit der Frau |
| Strengths | 25mcg, 50mcg, 75mcg, 100mcg, 150mcg | 2.5mg, 5mg, 10mg |
| Forms | tablet | tablet |
What's the same
Synthroid and Provera 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
Synthroid belongs to Hormone und Empfängnisverhütung while Provera belongs to Sexuelle Gesundheit der Frau. 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
Synthroid: Levothyroxin ersetzt das defizitäre endogene Thyroxin, das in den Geweben durch Deiodinasen in das aktive Hormon Trijodthyronin (T3) umgewandelt wird. Provera: Medroxyprogesteronacetat bindet an Progesteronrezeptoren und entfaltet starke gestagene Wirkungen: Verdickung des Zervixschleims, Hemmung der Ovulation, Atrophie des Endometriums und Reduktion der endometrialen Prolifera…
When Synthroid is preferred
Synthroid ist zur Behandlung der Hypothyreose jeglicher Ursache (Hashimoto-Thyreoiditis, nach Thyreoidektomie, nach Radioiodtherapie, kongenital), bei Struma sowie zur TSH-Suppression nach differenziertem Schilddrüsenkarzinom zugelassen.
When Provera is preferred
Provera ist zugelassen bei Amenorrhoe, abnormalen uterinen Blutungen aufgrund hormoneller Dysbalance und zur Prävention der Endometriumhyperplasie bei postmenopausalen Frauen unter Östrogentherapie.
Häufig gestellte Fragen
Is Synthroid or Provera better? ▾
Synthroid and Provera 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 Synthroid to Provera? ▾
Switching between Synthroid and Provera 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 Synthroid and Provera 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 Synthroid comparisons
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