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   車前子 A(しゃぜんし)
Latin名Plantaginis Semen
基源(学名)Plantago asiatica L. (Plantaginaceae) -(オオバコ科)
藥材寫眞
基源寫眞
效能淸熱, 利尿, 明目, 祛痰, 滲濕通淋
歸經肝, 腎, 肺, 小腸
性味甘, 微寒
修治 酒車前子(しゅしゃぜんし) ,鹽車前子(えんしゃぜんし) ,炒車前子(しょうしゃぜんし)
注意事項おおばこ科おおばこの種子, 內傷勞倦ㆍ陽氣下陷ㆍ腎虛滑精ㆍ濕熱がな{
毒性Plantaginis Semen is contraindicated in patients with known hypersensitivity or allergy to the plant, faecal impaction or intestinal obstruction, diabetes mellitus where insulin adjustment is difficult 1).
Plantaginis Semen products should always be taken with sufficient amounts of liquid, and at least half an hour after other medications to prevent delayed absorption of the latter. If bleeding or no response occurs after ingesting the drug, or if abdominal pain occurs 48 hours after treatment, treatment should be stopped and medical advice sought. If diarrhoea persists longer than 3 or 4 days, medical attention should be sought 2).
Bulking agents have been reported to diminish the absorption of some minerals, vitamin B12, cardiac glycosides, and coumarine derivatives 8, 9, 10). The co-administration of Plantaginis Semen with lithium salts has been reported to reduce the plasma concentrations of the lithium salts and may inhibit their absorption from the gastrointestinal tract 3). Plantaginis Semen has also been reported to decrease both the rate and extent of carbamazepine absorption, inducing subclinical levels of the drug 4). Therefore, ingestion of lithium salts or carbamazepine and Plantaginis Semen should be separated in time as far as possible 4). Individual monitoring of the plasma levels of the drug in patients taking Plantaginis Semen products is also recommended. Insulin-dependent diabetic people may require less insulin 1).
Sudden increases in dietary fibre may cause temporary gas and bloating. These side-effects may be reduced by gradually increasing fibre intake, starting at one dose per day and gradually increasing to three doses per day 2). Occasional flatulence and bloating may be reduced by decreasing the amount of Plantaginis Semen taken for a few days 2).
Allergic reactions to Plantaginis Semen in response to ingestion or inhalation have been reported, especially after previous occupational exposure to these products 5. 6, 7). These reactions range from urticarial rashes to anaphylactic reactions(rare). One case of fatal bronchospasm has been reported in Plantago-sensitive patient with asthma 5).
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藥典記載大韓藥典, 中國藥典, 日本藥局方
構成成分
  • alpha-Amyrin
  • (-)-alpha-Copaene
  • alpha-Pinene(+,-)
  • alpha-Terpineol
  • alpha-Terpineol acetate
  • Apigenin
  • Aucubin
  • Benzyl alcohol
  • beta-Amyrin
  • (+)-beta-Pinene
  • beta-Sitosterol
  • Calceolarioside B
  • Campesterol
  • Carvacrol
  • Catalpol
  • Citronellol acetate>
  • Citronellol; (R)-form

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