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    Antiallergic agent

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    English name CAS# Molecular formula
    Levocetirizine Dihydrochloride 130018-87-0 鹽酸左旋西替利嗪
    Loratadine 79794-75-5 氯雷他定
    Betahistine benzenesulfonate 190786-44-8 苯磺酸貝他斯汀
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