Zoloft vs Sertraline: are they the same?
Zoloft is a commercial brand whose active ingredient is exactly Sertraline. This page explains what that means in practice: where they differ (brand, manufacturer, price, available strengths), why they are clinically equivalent, and when the brand or an authorised generic is the better choice.
Are they the same?
Yes — Zoloft contains Sertraline as its active ingredient. Talking about "Zoloft" in clinical terms is the same as talking about Sertraline at the dose strengths 25mg, 50mg, 100mg. The differences from the authorised generic are brand, manufacturer (Pfizer), excipients, tablet appearance and price — not the active molecule itself.
When Zoloft is used
ゾロフトは成人における大うつ病性障害、広場恐怖を伴うまたは伴わないパニック障害、強迫性障害、心的外傷後ストレス障害、社交不安障害、月経前不快気分障害に承認されています。一部の国では6歳以上の小児強迫性障害も承認適応となっています。臨床ガイドラインによれば、治療は自殺リスクと薬物相互作用に注意を払い、メンタルヘルス処方に精通した臨床医によって開始されるべきです。
Mechanisms compared
Because they share the same active ingredient, the mechanism is identical: セルトラリンはセロトニントランスポーターを選択的に阻害することでシナプス間隙からのセロトニン再取り込みを防ぎ、シナプスのセロトニン濃度を増加させます。規則的投与を数週間続けることで、シナプス後受容体や細胞内シグナル伝達の適応的変化が引き起こされ、これが臨床的な抗うつ・抗不安効果を生み出すと考えられています。26時間の半減期により1日1回投与が可能で、定常状態の血漿中濃度は約1週間で達成されます。
Brand or generic — which to choose?
For most patients, authorised generics of Sertraline are clinically equivalent substitutes for Zoloft and typically cost substantially less. The practical differences are manufacturer, excipients (rarely matters except in specific sensitivities), tablet appearance and price. The brand is preferred by some patients for personal reasons or insurance coverage; the generic is the default when cost matters.
よくある質問
Is Zoloft the same as Sertraline? ▾
Clinically yes — Zoloft is the brand and Sertraline is its active ingredient. At equivalent doses (25mg, 50mg, 100mg) they produce the same effect. The difference is brand, manufacturer (Pfizer) and price.
Is generic Sertraline as effective as Zoloft? ▾
Yes. Authorised generics of Sertraline must demonstrate bioequivalence to the brand. The active substance is the same; average effect is the same. Price is usually substantially lower.
Why does Zoloft cost more than generic Sertraline? ▾
The price difference reflects originator development costs, brand recognition and competition among generic manufacturers. The molecule is identical; the cost is not.
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