It is a type of opium alkaloid that was first isolated from opium by French pharmacist Robiquet in 1832, and is a methyl compound of morphine. It is contained in opium at 1.31-5.39%. It has an action similar to morphine, but is less narcotic and less addictive. It is usually used in medicines as codeine phosphate. It is a representative narcotic cough suppressant used for cough suppression, pain relief, and sedation because it has a sedative effect on the respiratory center. It is used to suppress coughs caused by bronchitis, whooping cough, pulmonary tuberculosis, etc. Its pain relief effect is weaker than morphine, but its cough suppressant effect is strong. 100-fold powder is exempt from narcotic drug regulations and is used as a household narcotic. The usual daily dose is 0.06 grams. [Fumiji Koho] [Reference] | |Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
1832年フランスの薬剤師ロビケによって初めてアヘンから分離されたアヘンアルカロイドの一種で、モルヒネのメチル化合物。アヘン中に1.31~5.39%含まれる。モルヒネに類似した作用があるが麻薬性は少なく、習慣性となることは少ない。通常コデインリン酸塩として医薬品に用いられる。呼吸中枢を鎮静する作用があるところから、鎮咳(ちんがい)、鎮痛、鎮静の目的で使用される麻薬性鎮咳剤の代表的薬物である。気管支炎、百日咳(ひゃくにちぜき)、肺結核などの鎮咳に用いられる。鎮痛効果はモルヒネより弱いが鎮咳作用は強い。100倍散は麻薬の規制から外され、家庭麻薬として用いられる。1日の常用量は0.06グラム。 [幸保文治] [参照項目] | |出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
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