Lexapro vs Escitalopram: are they the same?
Lexapro is a commercial brand whose active ingredient is exactly Escitalopram. 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 — Lexapro contains Escitalopram as its active ingredient. Talking about "Lexapro" in clinical terms is the same as talking about Escitalopram at the dose strengths 5mg, 10mg, 20mg. The differences from the authorised generic are brand, manufacturer (Forest/Allergan), excipients, tablet appearance and price — not the active molecule itself.
When Lexapro is used
レクサプロは成人および12歳以上の青少年(うつ病)、ならびに成人(全般不安症)における大うつ病性障害および全般不安症に承認されています。適応外使用にはパニック障害、社交不安障害、強迫性障害、月経前不快気分障害が含まれます。臨床ガイドラインによれば、エスシタロプラムは成人プライマリケアにおけるうつ病、特に抗うつ薬未使用の患者に対する第一選択療法と考えられています。
Mechanisms compared
Because they share the same active ingredient, the mechanism is identical: レクサプロはシナプスにおけるセロトニン再取り込みトランスポーター(SERT)を選択的に阻害し、シナプス後受容体に対するセロトニン利用率を高めます。初回投与後数時間以内にSERTの生化学的阻害が検出されますが、下流の受容体適応が起こるにつれて治療効果は4~6週間かけて構築されます。不安症状はうつ症状よりも早く改善することが多く、最初の2週間以内に現れることもあります。
Brand or generic — which to choose?
For most patients, authorised generics of Escitalopram are clinically equivalent substitutes for Lexapro 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 Lexapro the same as Escitalopram? ▾
Clinically yes — Lexapro is the brand and Escitalopram is its active ingredient. At equivalent doses (5mg, 10mg, 20mg) they produce the same effect. The difference is brand, manufacturer (Forest/Allergan) and price.
Is generic Escitalopram as effective as Lexapro? ▾
Yes. Authorised generics of Escitalopram must demonstrate bioequivalence to the brand. The active substance is the same; average effect is the same. Price is usually substantially lower.
Why does Lexapro cost more than generic Escitalopram? ▾
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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