• 제목/요약/키워드: Drug effects

검색결과 3,597건 처리시간 0.033초

약물상호작용 : 기분안정제와 항불안제 (Drug-Drug Interactions : Mood Stabilizers and Anti-Anxiety Drugs)

  • 김영훈;이정구
    • 생물정신의학
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    • 제7권1호
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    • pp.34-45
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    • 2000
  • Pharmacotherapy of bipolar disorder is a rapidly evolving field. Mood stabilizers and anticonvulsants have varying biochemical profiles which may predispose them to different adverse effects and drug-drug interactions. Several of the new anticonvulsants appear less likely to have the problems with drug-drug interaction. To provide more effective combination pharmacotherapies, clinicians should be allowed to anticipate and avoid pharmacokinetic and pharmacodynamic drug-drug interactions. We reviewed the role of cytochrome P450 isozymes in the metabolism of the drugs and their interactions. The drug-drug interactions of several classes of drugs which used as mood stabilizers and new anticonvulsants, some of which may have psychotropic profiles, are discussed mainly in this article. Finally, potential pharmacokinetic interactions between the benzodiazepines and other coadministered drugs are discussed briefly.

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Treatment of Drug Susceptible Pulmonary Tuberculosis

  • Shin, Hong-Joon;Kwon, Yong-Soo
    • Tuberculosis and Respiratory Diseases
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    • 제78권3호
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    • pp.161-167
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    • 2015
  • Tuberculosis (TB) remains a major global health problem, and the incidence of TB cases has not significantly decreased over the past decade in Korea. The standard short course regimen is highly effective against TB, but requires multiple TB-specific drugs and a long treatment duration. Recent studies using late-generation fluoroquinolones and/or high-dose rifapentine-containing regimens to shorten the duration of TB treatment showed negative results. Extending the treatment duration may be considered in patients with cavitation on the initial chest radiograph and positivity in sputum culture at 2 months of treatment for preventing TB relapse. Current evidence does not support the use of fixed-dose combinations compared to separate drugs for the purpose of improving treatment outcomes. All patients receiving TB treatment should be monitored regularly for response to therapy, facilitation of treatment completion, and management of adverse drug reactions. Mild adverse effects can be managed with symptomatic therapy and changing the timing of the drug administration, but severe adverse effects require a discontinuation of the offending drugs.

Anti-inflammatory and Immunosuppressive Effects of Panax notoginseng

  • Cao, Thao Quyen;Han, Jae Hyuk;Lee, Hyun-Su;Ha, Manh Tuan;Woo, Mi Hee;Min, Byung Sun
    • Natural Product Sciences
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    • 제25권4호
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    • pp.317-325
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    • 2019
  • Here, we designed to examine the anti-inflammatory effects on RAW264.7 cells and the immunosuppressive effects by evaluating interleukin-2 (IL-2) production in Jurkat T cells using a MeOH extract of Panax notoginseng roots. The results showed that the MeOH extract inhibited the synthesis of nitric oxide (NO) in a dose-dependent manner (IC50 value of 7.08 ㎍/mL) and displayed effects on T cell activation at a concentration of 400 ㎍/mL. In efforts to identify the potent compounds, bioactivity-guided fractionation of the MeOH extract and chemical investigation of its active CH2Cl2-, EtOAc-, and butanol-soluble fractions led to the successful isolation and identification of eleven compounds, including two polyacetylenes (1, 2), a steroid saponin (3), seven dammarane-type ginsenosides (4 - 10), and an oleanane-type ginsenoside (11). Among them, compound 11 was isolated from this plant for the first time. Compound 2 exhibited potent inhibitory effects on NO synthesis and an immunosuppressive effect with IC50 values of 2.28 and 65.57 μM, respectively.

Evaluation of the gastroprotective effects of 20 (S)-ginsenoside Rg3 on gastric ulcer models in mice

  • Zhang, Kai;Liu, Ying;Wang, Cuizhu;Li, Jiannan;Xiong, Lingxin;Wang, Zhenzhou;Liu, Jinping;Li, Pingya
    • Journal of Ginseng Research
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    • 제43권4호
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    • pp.550-561
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    • 2019
  • Background: Gastric ulcer (GU) is a common gastrointestinal disease that can be induced by many factors. Finding an effective treatment method that contains fewer side effects is important. 20 (S)-ginsenoside Rg3 is a kind of protopanaxadiol and has shown superior antiinflammatory and antioxidant effects in many studies, especially cancer studies. In this study, we examined the treatment efficacy of 20 (S)-ginsenoside Rg3 on GU. Methods: Three kinds of GU models, including an alcohol GU model, a pylorus-ligated GU model, and an acetic acid GU model, were used. Mouse endothelin-1 (ET-1) and nitric oxide (NO) levels in blood and epidermal growth factor (EGF), superoxide dismutase, and NO levels in gastric mucosa were evaluated. Hematoxylin and eosin staining of gastric mucosa and immunohistochemical staining of ET-1, inducible nitric oxide synthase (NOS2), and epidermal growth factor receptors were studied. Ulcer index (UI) scores and UI ratios were also analyzed to demonstrate the GU conditions in different groups. Furthermore, Glide XP from $Schr{\ddot{o}}dinger$ was used for molecular docking to clarify the interactions between 20 (S)-ginsenoside Rg3 and EGF and NOS2. Results: 20 (S)-ginsenoside Rg3 significantly decreased the UI scores and UI ratios in all the three GU models, and it demonstrated antiulcer effects by decreasing the ET-1 and NOS2 levels and increasing the NO, superoxide dismutase, EGF, and epidermal growth factor receptor levels. In addition, high-dose 20 (S)-ginsenoside Rg3 showed satisfactory gastric mucosa protection effects. Conclusion: 20 (S)-ginsenoside Rg3 can inhibit the formation of GU and may be a potential therapeutic agent for GU.

Release of Flurbiprofen from Poloxamer 407 Gel

  • Gil, Hyung-Jun;Kim, Hyun;Chi, Sang-Cheol
    • Archives of Pharmacal Research
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    • 제17권4호
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    • pp.240-243
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    • 1994
  • Release rates of flurbiprofen from transdermal gels made of poloxamer 407 were evaluated using a membraneless diffusion cell in order to study the effects of formulation variables on flurbiprofen release such as poloxamer 407 (17.5-25%) drug (0.1-1.0%), ethanol (10-20%), PG or PEF 300 (5-15%) concentrations and gel pH(3-7). Isopropyl myristate was employed as a receptor medium for the drug released from the gel. The diffusion coefficient of flurbiprofen decreased linearly as the amount of poloxamer 407 and the drug in the gel increased. The release rate of flurbiprofen was gel increased. The The addition of more ethanol in the gel increased the drug release, resulting from the increase of the thermodynamic activity of the drug in the aqueous phase of the gel. However, the concentration effects of PG and PEG 300 on the release rate of flurbiprofen were negligible over the concentration range used.

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한국과 미국의 약사 연수 교육 분석을 통한 자기 주도적 약사 연수 교육 도입 방안 (A Study on the Introduction of Self-directed Pharmaceutical Training Education through the Analysis of Pharmaceutical Education in Korea and the U.S.)

  • 정수철
    • 한국콘텐츠학회논문지
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    • 제19권1호
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    • pp.598-607
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    • 2019
  • 현재 한국의 약사 연수 교육은 연간 8시간으로 대한약사회와 그 산하 지부 및 분회에서 주로 실시하고 있다. 정해진 시간에 다수의 약사들을 대상으로 진행되는 교육은 학습효과가 제한적이며 적극적인 학습 참여를 유도하기 어렵다. 본 연구에서는 약사 제도의 역사가 긴 미국의 약사 연수 교육을 문헌 연구 하여 한국의 약사 연수 교육의 발전 방안을 찾아보았다. 연구의 대상은 한국과 미국의 약사 연수 교육 운용 방식, 평가제도, 교과목 등이었다. 연구 결과 미국의 약사연수 교육은 다양한 방식이었으며 이수 시간이 길며 약사 면허 갱신 제도와 연계되어 있었다. 한국의 약사 연수 교육이 교육 시간의 연장, 교육 내용의 다양화, 자기 주도적 학습 및 현장 실습 교육을 도입 한다면 현재보다 더 발전할 것이다.

Formulation and Evaluation of Transdermal Patch Containing Sibutramine

  • Subedi, Robhash Kusam;Jang, Jun-Ho;Kim, Jae-Il;Park, Young-Joon;Choi, Hoo-Kyun
    • Journal of Pharmaceutical Investigation
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    • 제40권1호
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    • pp.33-38
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    • 2010
  • Sibutramine is a serotonin-norepinephrine reuptake inhibitor indicated for the management of obesity in conjunction with a reduced calorie diet. The oral administration of sibutramine is followed by its dose-related side effects. In this study, sibutramine was formulated into drug in adhesive (DIA) patches in an attempt to overcome these problems. The effects of different formulation variables including pressure-sensitive adhesive (PSA), loading amount of drug, thickness of matrix and enhancer on the skin permeation of the drug were evaluated using excised hairless mouse skin. In the acrylic adhesive with carboxyl functional group, low release of sibutramine was observed due to the strong interaction between carboxyl group of adhesive and amine group of sibutramine. The acrylic adhesive without functional group provided good adhesion force and allowed high drug loading. Changing drug load as well as thickness of the matrix was found to alter permeation rate. $Crovol^{(R)}$ PK40 and $Crovol^{(R)}$ A40, were found to be effective enhancers for sibutramine. The optimized patch contained 20% sibutramine, and 5% $Crovol^{(R)}$ A40 as permeation enhancer, in $80\;{\mu}m$ thick Duro-$Tak^{(R)}$ 87-9301 matrix.

약물지연방출을 위한 스테레오컴플렉스 PLA 원반형 마이크로입자 (Stereocomplex Poly(lactic acid) Discoidal Microparticles for Sustained Drug Release)

  • 박채원;박상효;김우철;기재홍
    • 대한의용생체공학회:의공학회지
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    • 제41권1호
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    • pp.62-66
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    • 2020
  • Controlled drug release is important for effective treatment of cancer. Poly(DL-lactide-co-glycolide) acid (PLGA) is a Food and Drug Administration (FDA) approved polymer and have been extensively studied as drug delivery carriers with biodegradable and biocompatible properties. However, PLGA drug delivery carriers are limited due to the initial burst release of drug. Certain drugs require an early rapid release, but in many cases the initial rapid release can be inefficient, reducing therapeutic effects and also increasing side effects. Therefore, sustained release is important for effective treatment. Poly Lactic Acid stereo complex (PLA SC) is resistant to hydrolysis and has high stability in aqueous solutions. Therefore, in this work, PLGA based discoidal polymeric particles are modified by Poly Lactic Acid stereocomplex (PLAsc DPPs). PLAsc DPPs are 3 ㎛ in diameter, also showing a relatively sustained release profile. Fluorescein 5(6)-isothiocyanate (FITC) released from PLAsc DPPs was continuously observed until 38 days, which showed the initial release of FITC from PLAsc DPPs was about 3.9-fold reduced as compared to PLGA based DPPs at 1 hour.