酊[1]（拉丁語：tinctura；英語：tincture）或稱酊劑，是以乙醇為溶劑的植物或動物材料的提取物。溶劑濃度通常為25-60％，但亦可能高達90％。[2]用於生產酊劑的其他溶劑包括醋、甘油、乙醚和丙二醇等。
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