【中文名称】甲磺司特
【别名】(2-(4-(3-乙氧基-2-羟基丙氧基)苯基氨基甲酰)乙基)二甲基锍对甲苯磺酸盐
【英文名称】Suplatast Tosilate
【英文别名】(2-(4-(3-ethoxy-2-hydroxypropoxy)phenylcarbamoyl)ethyl)dimethylsulfonium p-toluenesulfonate
【功效主治】 支气管哮喘,特异反应性皮肤炎,过敏性鼻炎。 【化学成分】 甲苯磺酸舒普拉司特
【药理作用】 以本品对小鼠进行免疫应答及小鼠、大鼠、豚鼠的过敏反应进行了研究。以本品10~100mg/(kg.d)连续经口给小鼠5日,只抑制IgE抗体的产生,对IgM及IgG无影响。以本品1~100mg/kg经口单次给药,在高剂量时可抑制大鼠及豚鼠的同种被动皮肤过敏性反应、大鼠的实验性过敏性鼻炎及豚鼠的实验性哮喘。以本品连续2周经口给药,对大鼠的过敏性鼻炎,50%有效剂量比单次给药减少20多倍,可见疗效逐渐增强。本品还可抑制小鼠的过敏性气管收缩及由抗原刺激引起的乙酰胆碱性气管收缩(气管过敏)。对照药Tranilast(TR)100mg/(kg.d),对小鼠抗体的产生无影响。本品对Ⅰ型过敏反应的大鼠及豚鼠的被动皮肤过敏反应单次给药可产生强力的抑制。本品还可抑制腹腔渗出细胞释放组织胺。本品对Ⅱ、Ⅲ及Ⅳ型过敏反应及炎症反应几乎无影响。本品对由于抗原抗体反应引起的大鼠肠系膜肥大细胞的脱颗粒及腹腔渗出细胞的组织胺释放的抑制程度与Tranilast一样,但对组织胺、白三烯D3等化学介质无拮抗作用。本品的作用机制,通过对花粉症患者末梢淋巴细胞建立的辅助T细胞株SN-4产生白细胞介素-4(IL-4)及对IgE抗体产生的影响,进行研究,结果本品浓度依赖的而且选择性的对两者产生抑制,可以认为主要抑制T细胞产生IL-4,从而抑制IgE的产生。本品有(+)与(-)光学异构体,两者药效未见差异。本品可产生6种代谢产物,其主要代谢产物M1的活性只及原形药物的1/3,M2也有相当的活性。此外,本品高剂量口服时可见对家兔脑电的觉醒作用、小鼠的镇痛作用、大鼠的条件回避反射的抑制作用。这些作用与Tranilast相比较弱。毒性试验:急性毒性,以小鼠和大鼠经口及静脉给药,犬以经口给药进行试验。经口给药可见物种的差别,LD50分别为12500mg/kg以上、10000mg/kg以上及2124~2660mg/kg。静脉内给药LD50,小鼠81~96mg/kg,大鼠93~96mg/kg。死亡原因都是呼吸困难,由于本品对神经肌肉接合部的药理作用,提示对呼吸肌的抑制作用。亚急性毒性,给大鼠及犬13周连续口服本品,都出现神经肌肉接头处的抑制。大鼠还出现病理性大脑及小脑神经细胞的变性1坏死,肝细胞光面内质网的轻度增生。慢性毒性,给大鼠及犬连续52周用药,大鼠出现病理性大脑皮层颞叶、小脑颗粒层坏死,临床症状为共济失调步态,四肢挛缩,过敏。周围神经未见明显变化。犬也未见器质性改变。由此,对中枢神经系统的病变可以认为是大鼠特异性改变。抗原性试验都是阴性的。致突变性以细菌回复突变试验、染色体异常试验、小核试验都是阴性的。治癌试验,以小鼠、大鼠进行104周试验将本品混合于饲料中给药,肿瘤发生率与对照组之间无差别。局部刺激试验以本品溶液给家兔点眼,确认为阴性。对生殖发育的毒性,大鼠SegⅠ试验,强制经口给药,分为本品200mg/(kg.d)、600mg/(kg.d)、1800mg/(kg.d)三个组,对母体动物一般毒性无影响量为雄性1800mg/(kg.d),雌为600mg/(kg.d),对亲代动物繁殖无影响量为1800mg/(kg.d),对胚胎发育无影响量为600mg/(kg.d)。大鼠SegⅡ试验,分为本品300mg/(kg.d)、900mg/(kg.d)、2700mg/(kg.d)三个组,强制经口给药,对母体动物一般毒性无影响量为300mg/(kg.d),对第1代无影响量为900mg/(kg.d),对第1代新生仔发育无影响量为300mg/kg.d)。家兔SegⅡ试验,用NZW家兔进行试验,强制经口给药,分为本品100mg/(kg.d)、300mg/(kg.d)、450mg/(kg.d)及700mg/(kg.d)四个组。对母体动物一般毒性无影响量为300mg/(kg.d),对胚胎发育无影响量为450mg/(kg.d)。
【不良反应】 临床试验中不良反应发生率为5%(73/1460例)。其中消化系不良反应如暧气、恶心、口渴、胃部不适、腹泻、软便等;精神神经系统如头痛、困倦等;皮肤如皮疹、荨麻疹、手指肿胀、瘙痒等多见。 此外,临床检查值异常如白细胞数、嗜酸性细胞数增多;GOT、GPT、γ-GPT、AL-P升高;蛋白尿、尿潜血阳性。 长期用药不良反应发生率为6.4%(12/187例),略有增加,但未见特殊的不良反应。
【用法用量】 一般成人,1次100mg,一日3次饭后口服。可按年龄、症状适当增减剂量。 【注意事项】 本品与支气管扩张剂、类固醇、抗组织胺类药物不同,对已发生的发作及症状不能迅速减轻,必须对患者充分说明。 应用本品过程中,若出现支气管哮喘大发作应给予支气管扩张剂或类固醇药物。 长期应用类固醇疗法的患者改用本品时,类固醇减量过程应密切观察,缓慢进行。应用本品而减少类固醇维持量的患者,停用本品时,可能引起原疾病的复发。 使用本品无效的患者不可长期继续使用。老年病人生理功能降低,应从低剂量开始(例如150mg/d),增加剂量须一面密切观察患者的不良反应及临床症状,一面增加剂量。 妊娠期应用本品的安全性尚未确定,只有治疗上的有益性大于危险性才可应用。 动物使用证实,本品向乳汁分布,哺乳期妇女应停止授乳。 小儿应用本品的安全性尚未确定(无使用经验)。 本品可抑制变应原皮内反应,以致不能确定过敏原。因此,进行变应原皮内反应检查前应停用本品。
【原产地英文商品名】IPD dry syrup 5% 0.75g/sachet 56sachets/box 【原产地英文药品名】SUPLATAST TOSILATE 【中文参考商品译名】 注:以下产品不同规格和不同价格,购买时请以电话咨询为准! ·IPD5%干糖浆 100克/瓶 ·IPD5%干糖浆 0.75克/小袋 56小袋/盒 【中文参考药品译名】甲磺司特 【生产厂家中文参考译名】大鹏制药 【生产厂家英文名】TAIHO Pharmaceutical Co.,LTD.
Manufacturer's name : TAIHO Pharmaceutical Co.,LTD.
Brand name : IPD dry syrup 5% Active ingredient: Suplatast tosilate Dosage form: dry syrup, white Printings on wrapping: アイピーディドライシロップ5% 37.5mg/0.75g TC444(0.75g package) アイピーディドライシロップ5% 75mg/1.5g TC446(1.5g package) Effects of this medicine This drug suppresses allergic reactions by inhibiting T lymphocytes. It is commonly used to treat bronchial asthma. This medicine is not designed to rapidly alleviate already occurring asthma attacks or symptoms.
Before using this medicine, tell your doctor/pharmacist If you ever experienced any allergic reaction (itch, rash etc.) to any medicine. If you are a patient with liver damage. If you are pregnant or breastfeeding. If you are using any other prescription or nonprescription (OTC) medicine. (It is important to reduce the risk of drug interactions.) Dosage regimen (proper use of this medicine) Your dosage regimen is:(order of your doctor) General dosage regimen: For children, take 0.06 g per kg of body weight (equivalent to 3mg/kg body weight of suplatast tosilate) twice daily after breakfast and dinner by dissolving the medicine in water just before use. The dose can be decreased or increased according to the patient's age and condition, however daily dosage should not exceed 6 g (300mg) of dry syrup. Strictly follow the instructions of your doctor/pharmacist. If you do not dissolve it, drink the powder with a cup of water. take the medication as soon as you remember. However, if you remember your medicine at a point close to the time for the next dose, skip one dose and proceed with the prescribed schedule of medication starting from the next dose. DO NOT take a double dose to make up for the missed dose. Overdose: If you took too much of this medicine (more than ordered), check with your doctor/pharmacist. Others: Do not stop taking your medicine without the instructions of your doctor. In the case of children, understanding by parents of the proper use of this medication and parental supervision are needed. Side effects of this medicine Common side effects are reported as below. If any of them occurs, check with your doctor/pharmacist: nose bleeding, stomach discomfort, nausea, sleepiness, rash. In rare cases, symptoms described below may be the sign of side effects indicated in brackets [ ]. If they occur, stop taking your medicine and check with your doctor immediately. tiredness, appetite loss, fever, nausea[hepatic dysfunction] decrease of urinary output, swelling (general), difficult breathing[nephrotic syndrome] Other side effects not listed here may occur. Check with your doctor/pharmacist if you have any worrisome symptom.
Storage and other information Keep out of the reach of babies, infants and children. Avoid direct sunlight and store in a cool dry place. If you have any left-over medicine, be sure to discard it. |