Fluoxetine vs Sitagliptin: side-by-side comparison
Fluoxetine (Selective serotonin reuptake inhibitor (SSRI)) and Sitagliptin (DPP-4 inhibitor) belong to different therapeutic classes and are rarely substitutes for each other. The comparison is useful when a single patient is weighing both options for adjacent or overlapping needs.
| Property | Fluoxetine | Sitagliptin |
|---|---|---|
| Therapeutic class | Selective serotonin reuptake inhibitor (SSRI) | DPP-4 inhibitor |
| CAS | 54910-89-3 | 486460-32-6 |
| ATC | N06AB03 | A10BH01 |
| Molecular weight | 309.33 g/mol | 407.31 g/mol |
| Brands with this active ingredient | 1 | 1 |
What they share
Fluoxetine and Sitagliptin share the common regulatory framework for prescription active ingredients, bioequivalence standards for generics, and pharmacist oversight. Beyond that, points in common are limited.
Key differences
Fluoxetine acts by a different mechanism than Sitagliptin, with indications that barely overlap. Comparing the two is useful when a clinician has mentioned both in the same context or the patient wants to understand why one was prescribed instead of the other.
Mechanisms compared
Fluoxetine: Fluoxetin hemmt selektiv den Serotonin-Wiederaufnahmetransporter und erhöht so die synaptische Verfügbarkeit von Serotonin. Sitagliptin: Sitagliptin hemmt reversibel DPP-4, die Serinprotease, die für den schnellen Abbau von Glucagon-like Peptid 1 (GLP-1) und glukoseabhängigem insulinotropen Polypeptid (GIP) verantwortlich ist.
Indications compared
Fluoxetine: Fluoxetin ist zugelassen bei der Major Depression (bei Erwachsenen und Kindern ab 8 Jahren), der Zwangsstörung, der Bulimia nervosa, der Panikstörung und der prämenstruellen dysphorischen Störung. Sitagliptin: Sitagliptin ist bei Erwachsenen mit Typ-2-Diabetes mellitus, allein oder in Kombination mit anderen antidiabetischen Wirkstoffen, zur Verbesserung der glykämischen Kontrolle zugelassen.
Safety profile
Fluoxetine: Häufige Nebenwirkungen sind Übelkeit, Kopfschmerzen, Schlafstörungen, sexuelle Funktionsstörungen und vermindertem Appetit. Sitagliptin: Sitagliptin wird im Allgemeinen gut vertragen.
Häufig gestellte Fragen
Is Fluoxetine better than Sitagliptin? ▾
Fluoxetine and Sitagliptin are not "better or worse" — they treat different things. The sensible question is which fits your specific need.
Can Fluoxetine and Sitagliptin be combined? ▾
Whether they can be combined depends on the indications and the interaction profile of each. If both are in a single prescription, the prescriber has weighed it; in self-medication they should never be combined.
Do they have the same side-effect profile? ▾
No — they belong to different classes and have distinct side-effect profiles. Each has its own prescribing information.
Products with Fluoxetine
Products with Sitagliptin
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