Lipitor vs Atorvastatin: are they the same?
Lipitor is a commercial brand whose active ingredient is exactly Atorvastatin. 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 — Lipitor contains Atorvastatin as its active ingredient. Talking about "Lipitor" in clinical terms is the same as talking about Atorvastatin at the dose strengths 10mg, 20mg, 40mg, 80mg. The differences from the authorised generic are brand, manufacturer (Pfizer), excipients, tablet appearance and price — not the active molecule itself.
When Lipitor is used
リピトールは成人の原発性高コレステロール血症および混合型脂質異常症の治療、リスクの高い患者における心血管イベントの予防、急性冠症候群、脳卒中または血行再建術後の心血管イベントの二次予防に承認されています。また家族性高コレステロール血症のある10歳以上の青少年において専門家の監督下で承認されています。国際ガイドラインによれば、用量の選択はベースラインリスクおよびLDL目標値に依存します。
Mechanisms compared
Because they share the same active ingredient, the mechanism is identical: アトルバスタチンは肝臓のコレステロール合成における律速酵素であるHMG-CoA還元酵素を競合的に阻害します。細胞内コレステロールの減少により肝細胞表面のLDL受容体がアップレギュレートされ、循環LDLのクリアランスが増加します。本剤は内皮機能、炎症およびプラーク安定性に対する多面的効果も有します。臨床結果として用量に応じてLDLコレステロールが約30%~60%低下し、それに伴い重大な心血管イベントが減少します。
Brand or generic — which to choose?
For most patients, authorised generics of Atorvastatin are clinically equivalent substitutes for Lipitor 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 Lipitor the same as Atorvastatin? ▾
Clinically yes — Lipitor is the brand and Atorvastatin is its active ingredient. At equivalent doses (10mg, 20mg, 40mg, 80mg) they produce the same effect. The difference is brand, manufacturer (Pfizer) and price.
Is generic Atorvastatin as effective as Lipitor? ▾
Yes. Authorised generics of Atorvastatin must demonstrate bioequivalence to the brand. The active substance is the same; average effect is the same. Price is usually substantially lower.
Why does Lipitor cost more than generic Atorvastatin? ▾
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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