Pharmaceutical name: 英文藥名﹕	Semen Sterculiae Scaphigerae
Botanical name: 學名﹕	Sterculia scaphigera Wall.; Sterculia lychnophora Hance
Pron. in Japanese: 日語發音﹕	bantaikai
Pron. in Korean: 韓語發音﹕	pandaehae
Pron. in Cantonese: 粵音﹕	pun4 daai6 hoi2
Other Names: 別名﹕	an nan zi 安南子
Common Name: 英文名﹕	boat sterculia seed
Distribution: 產地﹕	mainly in Thailand, Cambodia, Indonesia, Vietnam, India and Guangdong province, Hainan province of China. 主產於泰國、柬埔寨、馬來西亞、印度尼西亞、越南、印度等國，及中國的廣東、海南島等地。
Properties (characteristics)﹕ 性味﹕	sweet, cold 甘，寒。
Channels (meridians) entered:   歸經﹕	large intestine, lung 肺，大腸。
Medical functions: 藥理﹕	constricting the smooth muscles of blood vessels improving the inflammation of the mucous lessening the spastic pain the water extract of pang da hai can promote the movement of the intestine and create a mild laxative effect. The effect of the seed is  the strongest.   胖大海素對血管平滑肌有收縮作用， 能改善粘膜炎症， 減輕痙攣性疼痛。 水浸液具有促進腸蠕動，有緩瀉作用，以種仁作用最強。
Actions & Indications: 主治﹕	acute conjunctivitis, dry coughs, pain in the throat, coarse voice, vomiting blood, nose bleeding, dry and hard stool, hemorrhoids, heat type of tooth ache 時行赤眼， 乾咳， 喉嚨痛， 音啞， 吐血， 衄血， 大便燥結， 痔瘡， 風火牙痛。
Chemical ingredients: 化學成份﹕	bassorin 西黄蓍胶粘素 sterculin 胖大海素 arabinose 阿拉伯糖 galactose 半乳糖 Galacturonic acid 半乳糖醛酸 galactose acetic acid 半乳糖乙酸
Dosage: 用量﹕	3 to 5 pieces 3－5 枚
Samples of formulae :處方舉例﹕
Modern Research: 現代研究﹕
Toxicity & Cautions: 毒素與禁忌﹕	Not to use in cases of abundance of thin clear phlegm, asthma with cough or pixu (spleen deficient) syndrome of thick, fat tongue with slippery, oily fur, and loose stool. Long term usage can cause pixu (spleen deficient)  with loose stool, lack of appetite, emaciation. Large dosage may be toxic to the kidneys. 痰多而稀白,胸悶或噁心,喘咳或脾虛証見舌體胖而苔滑膩,便溏者忌用。 長期服用會引起脾虛，大便稀薄、飲食減少、胸悶、消瘦等。大劑量可能對腎臟有毒。