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长于健脾和胃、疏肝行气，多用于肝郁胁痛、肝胃不和
性偏温，长于消食化滞、回乳消胀，多用于米面食积、断乳
长于消食止泻，多用于食积不化、脘腹胀痛、泄泻
消食健胃常用10–15g；回乳或治疗乳汁郁积宜大剂量30–60g。生用偏于疏肝消胀，炒用偏于消食和中，焦麦芽偏于消食止泻。
本平台仅供学术参考，不构成医疗建议。
麦芽含淀粉酶、麦芽糖及大麦芽碱，具助消化、回乳及调节胃肠动力作用。
Germinated barley contains amylases, maltose, and hordenine with digestive-enzyme, lactation-suppressing, and prokinetic activity.
麦芽消食健胃，尤善消米面薯芋之积；生用回乳，炒用消食。
Reduces food stagnation, especially from grains and tubers; raw for lactation suppression, dry-fried for digestion.
生麦芽含活性淀粉酶，炒后酶活下降但消食作用保留；临床大剂量可降低泌乳素。
Raw malt contains active amylase; frying reduces enzyme activity but preserves digestive action; high doses clinically lower prolactin.
《中国药典》以性状及淀粉酶活力为质量控制指标。
Chinese Pharmacopoeia uses macroscopic identification and amylase activity as quality controls.
本部分信息仅供学术参考，不构成医疗建议。
哺乳期妇女不宜服用（大量服用可回乳）。无积滞、脾胃虚弱而非因食停者慎用。《药品化义》言其能消肾，久服损肾。
哺乳期妇女服用大剂量（60g以上）可回乳，需授乳者禁用。孕妇慎用。含淀粉酶，高温久煎可降低其消食之效，宜后下或不宜久煎。
《神农本草经》未载，后世《名医别录》《本草纲目·谷部》载麦蘖，言其消食和中、下气、开胃健脾。
@misc{bencaodian-mai-ya,
author = {{Bencaodian Editorial}},
title = {Mài Yá 麦芽 (Barley Sprout) — Hordei Fructus Germinatus},
year = {2026},
howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine},
url = {https://bencaodian.org/zh/herbs/mai-ya},
urldate = {2026-04-09},
note = {CC BY-SA 4.0}
}