著者

本田 義輝 中野 眞汎

出版者

一般社団法人 日本医療薬学会

雑誌

病院薬学 (ISSN:03899098)

巻号頁・発行日

vol.23, no.3, pp.219-224, 1997-06-10 (Released:2011-08-11)

参考文献数

7

被引用文献数

8 11

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The adsorption characteristics of various adsorbates by spherical charcoal (Kremezin ®) were studied in vitro and then compared with those of powdered medical charcoal. Medical charcoal adsorbs substances with molecular weights ranging from several hundred daltons to several thousand daltons. Kremezin, however, adsorbs only low molecular weight substances with molecular weights of up to several hundred daltons. Therefore, the adsorption selectivity of Kremezin, which is related to the molecular weight of adsorbate, seemed to contribute to the specific pharmacological action of this drug under clinical conditions. In batch adsorption tests for various amines, amino acids and organic acids with molecular weightsof from 45 to 251, both adsorbents showed similar behaviors. An increase in the size of the adsorbate molecule enhanced the degree of adsorption, especially in compounds that are analogs. The molecular structure also seemed to be an important factor in the adsorption phenomena; an aromatic ring tended to increase the adsobability while the amino group, carboxyl group and hydroxyl group all showed a decrease in adsorbability.

著者

森山 祐輔 有森 和彦 中野 眞汎

出版者

一般社団法人 日本医療薬学会

雑誌

病院薬学 (ISSN:03899098)

巻号頁・発行日

vol.18, no.3, pp.245-251, 1992-06-20 (Released:2011-08-11)

参考文献数

11

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The statistics indicates that the constitution of children, which includes height and body weight, has developed during the last 40 years.Therefore, we investigated that body surface area of children at present for every age which was calculated with Fujimoto's formula was greater than that in 1948.So we reexamined pediatric dose obtained from Augsberger's I, Augsberger's II, Young's, and Fujimoto's formula.The pediatric dose ratio based on body surface area in 1948 much more corresponded with the dose ratio obtained from the Augsberger's II formula.On the other hand, the pediatric dose ratio based on body surface area for every age in 1987 was shifted to higher dose ratio compared with that obtained from the Augsberger's II formula. The pediatric dose ratios obtained from three formulas except Fujimoto's formula indicated lower dose ratio than that obtained from Fujimoto's formula.Furthermore, under the age of five, pediatric dose ratio calculated from Fujimoto's formula was higher than that calculated from Du Bois's formula.The difference between the two dose ratios was larger as the age of children was lower.Consequently, considering big change in the constitution of children during the last 40 years, there may be a possibility to estimate lower pediatric dose than the dose which was required in the present children, if the pediatric dose was eviluated with Augsberger's II formula.

著者

有森 和彦 宮崎 万理 若山 香都美 弟子丸 恵実 中野 眞汎

出版者

一般社団法人 日本医療薬学会

雑誌

病院薬学 (ISSN:03899098)

巻号頁・発行日

vol.16, no.6, pp.380-384, 1990-12-20 (Released:2011-08-11)

参考文献数

13

著者

本田 義輝 中野 尚美 中野 眞汎

出版者

公益社団法人 日本薬学会

雑誌

ファルマシア (ISSN:00148601)

巻号頁・発行日

vol.21, no.5, pp.414-417, 1985-05-01 (Released:2018-08-26)

著者

中園 直子 猪爪 信夫 飛野 幸子 岩奥 玲子 中野 眞汎

出版者

The Japanese Society of Clinical Pharmacology and Therapeutics

雑誌

臨床薬理 (ISSN:03881601)

巻号頁・発行日

vol.16, no.2, pp.401-407, 1985-06-30 (Released:2010-06-28)

参考文献数

27

被引用文献数

1

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The bioavailability of theophylline following administration of two pediatric sustained release tablets (Theona-P® and Theo-Dur®), two crushed sustained release tablets (crushed Theona-P® and crushed Theo-Dur®), and newly developed sustained release granules (E-0686-023, investigational drug) was studied in four volunteers by measuring salivary concentrations. The pharmacokinetic parameters tmax and MRT (mean residence time) for crushed Theona-P® and crushed Theo-Dur® were significantly shorter compared to Theona-P®, Theo-Dur®, and E-0686 granules, but the AUC0-∞ values were not different among them. The results show that each preparation is equivalent in the extent of bioavailability but not in the rate of bioavailability. More frequent administration is required when crushed Theona-P® or crushed Theo-Dur® are taken, and sustained release granules are desirable in children with chronic asthma who cannot swallow tablets.

著者

本田 義輝 中野 眞汎

出版者

日本病院薬剤師会

雑誌

病院薬学

巻号頁・発行日

vol.20, no.4, pp.265-272, 1994

被引用文献数

4

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Adsorption characteristics of creatinine by activated carbon beads consisting of about 67% activated carbon powder in ager were studied in vitro and compared with those of Kremezin^<[◯!R]> from the standpoint of usefulness for sequestering uremic wastes and uremic toxins exsorbed into the intestine. The extent and rate of creatinine adsorption on carbon in the beads were almost equal to those of the naked powder, and the preparation also demonstrated a similar adsorption behavior for creatinine as compared with Kremezin under the conditions of the presence of various ionic and nonionic additives. Furthermore, uremic peaks 2a and 2b on HPLC specific to chronic renal failure were readiy eliminated by the treatment of the beads in the uremic plasma. On the other hand, although the adsorption capacities of Kremezin for drugs were generally equal to those of medical carbon, the adsorption rate by Kremezin was smaller, but inferiority was not so serious as to make Kremezin useless as an oral antidote in acute intoxications brought on by drugs.

著者

田上 直美 高野 佐知子 本田 義輝 〓田 聡 谷崎 正典 吉原 博幸 中野 眞汎

出版者

一般社団法人日本医療薬学会

雑誌

医療薬学 (ISSN:1346342X)

巻号頁・発行日

vol.28, no.6, pp.583-589, 2002-12-10 (Released:2011-03-04)

参考文献数

5

被引用文献数

4 2

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Recently, pharmaceutical care is increasing in importance. Pharmacists must provide pharmaceutical counseling services that can satisfy all patients. However, there are limitations in manpower and a lot of effort has to put devoted to using such manpower as effectively as possible. With this in mind, we developed a medication consultation support system for pharmacists to achieve an improved medical quality. As a result, labor saving results were obtained in document preparation of medication histories, laboratory test histories, and medication instruction records. Furthermore, the total work need to create medication instruction daily reports, monthly reports, etc. also decreased. As a result, the time and work pressure experienced by pharmacists decreased while the overall quality of this system was maintained.

著者

有森 和彦 河野 ひとみ 近見 和代 岩奥 玲子 中野 眞汎

出版者

一般社団法人 日本医療薬学会

雑誌

病院薬学 (ISSN:03899098)

巻号頁・発行日

vol.13, no.6, pp.361-365, 1987-12-20 (Released:2011-08-11)

参考文献数

4

被引用文献数

3 1

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Serum concentrations of phenytoin and phenobarbital which were administered as the tablet or the powder in epileptic patients were determined by the fluorescence polarization immunoassay method. The serum concentrations of phenytoin administered as the tablet (Hydantol®) were higher than those as the powder (Aleviatin ® fine granules). To investigate the differences in serum levels following administration of each preparation, compliance, dissolution characteristics of the preparations and losses of the powder after operating the dividing and packing machines were investigated. Since phenytoin dissolved from the Hydantol ® tablet more slowly than from the Aleviatin ® fine granules, the differences in dissolution rates of both preparations do not seem to be the cause of higher serum concentrations in patients taking the Hydantol ® tablet.The amount of the powder after operating three types of dividing and packing machines was decreased about 2-8% of the original amount of the powder by adhesion to various dividing sites of the machine. Accordingly, the lower serum concentrations of phenytoin after the administration of the powder may be due to losses of the powder by the adhesion to dividing and packing machine and due to non-compliance.Although there was no significant difference in the serum concentrations of phenobarbital between the tablet (Phenobal ®) and the powder (JP X phenobarbital powder), large variations in the serum concentrations were observed following administration of the powder. In view of the result of questionnaire and bitterness of the drug, a possibility of non-compliance of the powder was considered. Thus, it may be suggested that these factors should be concerned invariations of the serum concentrations.

著者

中野 眞汎

出版者

The Society of Synthetic Organic Chemistry, Japan

雑誌

有機合成化学協会誌 (ISSN:00379980)

巻号頁・発行日

vol.42, no.7, pp.665-671, 1984-07-01 (Released:2009-11-13)

参考文献数

18

被引用文献数

5 7

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Poly (ethylene carbonate), poly (propylene carbonate), and poly (ethylene propylene carbonate) were examined as to their biodegradability, permeability, and drug release characteristics.Poly (ethylene carbonate) degraded but poly (propylene carbonate) did not in the peritoneal cavity of rats and the peritoneal cavity and subcutaneous tissue of guinea pigs. Mixtures of the two polymers degraded at a rate in proportion to poly (ethylene carbonate) content. Degradation rate in the peritoneal cavity was faster than that in subcutaneous tissue in guinea pigs.Membranes free from pores were obtained from poly (ethylene carbonate). Permeability of drugs through them depended on lipophilicity indicating role of solubility of the drugs in the membrane material for permeation.Release rate of tegafur from poly (ethylene carbonate) implants was faster than that from poly (propylene carbonate) implants. Blood level profiles were obtained after implantation of implants in rats.Microspheres containing local anesthetics were prepared by a solvent evaporation process and effects of drug content and polymer on release profiles were examined in vitro. Duration of local anesthesia after administration of dibucaine microspheres in guinea pigs was demonstrated.

著者

中野 眞汎 中野 真子

出版者

一般社団法人 日本臨床薬理学会

雑誌

臨床薬理 (ISSN:03881601)

巻号頁・発行日

vol.33, no.1, pp.201S-202S, 2002-01-31 (Released:2010-06-28)

被引用文献数

1 1