Augmentin vs Amoxicillin: are they the same?
Augmentin is a commercial brand whose active ingredient is exactly Amoxicillin. 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 — Augmentin contains Amoxicillin as its active ingredient. Talking about "Augmentin" in clinical terms is the same as talking about Amoxicillin at the dose strengths 500/125mg, 875/125mg, 1000/62.5mg. The differences from the authorised generic are brand, manufacturer (GlaxoSmithKline), excipients, tablet appearance and price — not the active molecule itself.
When Augmentin is used
オーグメンチンは成人および小児において、急性中耳炎、副鼻腔炎、市中肺炎、慢性気管支炎の急性増悪を含む呼吸器感染症、尿路感染症、歯科感染症、皮膚および軟部組織感染症、腹腔内感染症など、βラクタマーゼ産生菌による感染症の治療に承認されています。国際ガイドラインによれば、クラブラネートの追加によりアモキシシリンの抗菌スペクトルは多くの耐性株にまで拡大されます。
Mechanisms compared
Because they share the same active ingredient, the mechanism is identical: アモキシシリンはペニシリン結合タンパク（PBP）に結合して細菌の細胞壁合成を阻害しますが、一部の耐性菌が産生するβラクタマーゼにより加水分解されます。クラブラネートはそれ自体は弱い抗菌作用しか有しませんが、βラクタマーゼの自殺的阻害薬として作用し、アモキシシリンを酵素分解から保護します。本配合により、インフルエンザ菌、モラクセラ・カタラーリス、黄色ブドウ球菌、嫌気性菌などのβラクタマーゼ産生株に対する活性が回復します。
Brand or generic — which to choose?
For most patients, authorised generics of Amoxicillin are clinically equivalent substitutes for Augmentin 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 Augmentin the same as Amoxicillin? ▾
Clinically yes — Augmentin is the brand and Amoxicillin is its active ingredient. At equivalent doses (500/125mg, 875/125mg, 1000/62.5mg) they produce the same effect. The difference is brand, manufacturer (GlaxoSmithKline) and price.
Is generic Amoxicillin as effective as Augmentin? ▾
Yes. Authorised generics of Amoxicillin must demonstrate bioequivalence to the brand. The active substance is the same; average effect is the same. Price is usually substantially lower.
Why does Augmentin cost more than generic Amoxicillin? ▾
The price difference reflects originator development costs, brand recognition and competition among generic manufacturers. The molecule is identical; the cost is not.
本ウェブサイトの情報は参考および教育目的のみで提供されます。資格を有する医療従事者への相談に代わるものではありません。