• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Parkinson`s Disease (PD) and Treatment
Parkinson`s Disease (PD) and Treatment

... Drug Therapy – L-DOPA L-DOPA can cross blood-brain barrier, when dopamine cannot. This led to the idea of using L-DOPA as treatment for PD.  First used in the 1960’s, with daily increase dosage program.  L-DOPA used in combination with Carbidopa in 1967. ...
Slide 1
Slide 1

... Thin film drug delivery is a process of delivering drugs to the systemic circulation via a thin film that dissolves when in contact with liquid, often referred to as a dissolving film or strip. thin film strips are typically designed for oral administran, with the user placing the strip on or under ...
Slide 1 - Bionext
Slide 1 - Bionext

... ✦Elegant and cosmetically acceptable formulations are available from Concert, LLC ...
Memo - Passport
Memo - Passport

... interaction has a rapid onset. The elimination half-life of iohexol is 2 hours and that of metformin is 6.2 hours.8,9 If no alternative contrast agent can be used, wait 14 hours (7 half-lives) post-iohexol administration to continue metformin doses (ideally, one would wait 40 hours after the last me ...
don*t bath with this stuff - Texas Counseling Association
don*t bath with this stuff - Texas Counseling Association

... Burst, Purple Rain, Hurricane Charlie and many more. ...
AIJG-61999
AIJG-61999

... weak estrogens in the in the body. As such, they can moderate the effects of the decline in estrogen production, including bone p~rosity, cholesterol and LDL levels. Daidzein has also been shown to restrict the development of new blood vessels.” “Widely recognized in Europe, Black cohosh is the most ...
FORMULATION AND EVALUATION OF FLOATING MATRIX TABLET OF ATENOLOL FOR
FORMULATION AND EVALUATION OF FLOATING MATRIX TABLET OF ATENOLOL FOR

... The total dose of atenolol for twice a day sustained release formulation was calculated as per Robinson Eriksson equation17 using available pharmacokinetic data18. Pharmacokinetic studies show that 25 mg of atenolol produce expected therapeutic effects within 2 h with a half life of 6 h. Thus, the f ...
EVALUATION OF REPAGLINIDE ENCAPSULATED NANOPARTICLES PREPARED BY SONICATION METHOD  Research Article
EVALUATION OF REPAGLINIDE ENCAPSULATED NANOPARTICLES PREPARED BY SONICATION METHOD Research Article

... from systems where the release rate is concentration dependent. This explains after first hour release the drug diffuses comparatively slower rate as the distance for diffusion increased. The zero-order rate describes the systems where the drug release rate is independent of its concentration and Hi ...
FORMULATION AND OPTIMIZATION OF OCULAR POLY-D, L-LACTIC ACID NANO DRUG
FORMULATION AND OPTIMIZATION OF OCULAR POLY-D, L-LACTIC ACID NANO DRUG

... 67% for Y2) which clearly indicate that the Y1 and Y2 value is strongly affected by the variables selected for the study. This is also reflected by the wide range of values for coefficients of the terms in equations. The main effects of X1, X2, and X3 represent the average result of changing one var ...
Photostability
Photostability

... protected by packaging, an in-use study may be needed to support the use of the product (e.g., a parenteral drug that is infused over a period of time). The test conditions for in-use studies will vary depending on the product and use but should depend on and relate to the directions for use of the ...
Alex A. Adjei, Roswell Park Cancer Institute, Buffalo, NY
Alex A. Adjei, Roswell Park Cancer Institute, Buffalo, NY

ISMP Medication Safety Alert
ISMP Medication Safety Alert

... forthcoming generic product that will be available in the prior concentration (10 mg/mL). Update computer system databases and internal drug resources to ensure proper mixing. If your computer system allows for order replication from past admissions, work with your IT department to intercept orders ...
Chapter 16 Cholinesterase Inhibitors
Chapter 16 Cholinesterase Inhibitors

... Copyright © 2013, 2010 by Saunders, an imprint of Elsevier Inc. ...
Pharmacophore Approach in Drug Discovery
Pharmacophore Approach in Drug Discovery

... • The risk with the SOSA approach is to prepare a molecule already synthesized by the initial inventors and their early competitors. • In fact, in optimizing another therapeutic profile than that of the initial one, the medicinal chemist will rapidly prepare analogues with chemical structures very d ...
Metabolic Activation and Idiosycratic Drug Toxicity
Metabolic Activation and Idiosycratic Drug Toxicity

... •  Unrelated to primary pharmacology •  Dose independent (with the exception of some drugs) – can occur at any dose within the therapeutic range •  Temporal relationship - Symptoms subsides after cessation of treatment; rapid onset upon re-challenge •  Can be severe - maybe fatal - most common cause ...
English - Micromedex
English - Micromedex

... Micromedex users can search for the drug on the homepage, and the drug classes of methimazole can be viewed from the drug dashboard. Select Antithyroid Agent from the drug classes, and an alphabetical list of drugs in that class will be displayed, with the option to jump straight to another letter i ...
Reactive Metabolites - New England Drug Metabolism Discussion
Reactive Metabolites - New England Drug Metabolism Discussion

... • Unrelated to primary pharmacology • Dose independent (with the exception of some drugs) – can occur at any dose within the therapeutic range • Temporal relationship - Symptoms subsides after cessation of treatment; rapid onset upon re-challenge • Can be severe - maybe fatal - most common cause for ...
Diapositive 1
Diapositive 1

... 0.5 mg/kg) of JMV 1843 as a single oral administration of an aqueous solution in comparison to a placebo ...
ISMP Medication Safety Alert - Institute For Safe Medication Practices
ISMP Medication Safety Alert - Institute For Safe Medication Practices

... site. To promote such a process, the following selected agenda items have been prepared for your senior leaders and an interdisciplinary committee to stimulate discussion and action to reduce the risk of medication errors. These agenda items appeared in the ISMP Medication Safety Alert! between Apri ...
to get the file - Chair of Computational Biology
to get the file - Chair of Computational Biology

... • standard deviation (se) of 0.2–0.3 log units corresponds to a typical 2-fold error in experiments („soft data“). This gives rise to an upper limit of • r2 between 0.77–0.88 (for biological systems) → obtained correlations above 0.90 are highly likely to be accidental or due to overfitting (except ...
Drugs That Significantly Increase Blood Glucose
Drugs That Significantly Increase Blood Glucose

... Pharmacist’s Letter/Prescriber’s Letter. May 2014. ...
Oral Dosing of Encochleated Amphotericin B (CAmB
Oral Dosing of Encochleated Amphotericin B (CAmB

... treated for 14-days with control, DAmB (Amphotericin B deoxycholate) 2 mg/kg intraperitoneal, or CAmB 10 mg/kg oral. Untreated and uninfected mice were used as blank controls. Five mice from each treatment group were sacrificed on days 1, 3, 5, 7, 11, and 15. Plasma and tissues were collected for an ...
When to Spare Some Pharmaceutical Care
When to Spare Some Pharmaceutical Care

...  All hospitals had the similar dominant strain (129 of 157 isolates or 82%)  Among the 38 patients who acquired CDAD in the community, 37% had NAP1/027  Isolates of dominant strain resistant to all quinolones but susceptible to clindamycin Logo LG, Porier L, Miller Ma, et al, A predominantly clon ...


... Email: [email protected] ...
FullReport
FullReport

... substance that was interesting to me caffeine was immediately my first pick. It is a substance that can be found in multiple forms and is completely legal. Caffeine has been around for centuries. Throughout history, the most common types of caffeinated products were coffee, tea, and chocolate. The u ...
< 1 ... 359 360 361 362 363 364 365 366 367 ... 584 >

Pharmacokinetics



Pharmacokinetics, sometimes abbreviated as PK (from Ancient Greek pharmakon ""drug"" and kinetikos ""moving, putting in motion""; see chemical kinetics), is a branch of pharmacology dedicated to determining the fate of substances administered externally to a living organism. The substances of interest include pharmaceutical agents, hormones, nutrients, and toxins. It attempts to discover the fate of a drug from the moment that it is administered up to the point at which it is completely eliminated from the body.Pharmacokinetics describes how the body affects a specific drug after administration through the mechanisms of absorption and distribution, as well as the chemical changes of the substance in the body (e.g. by metabolic enzymes such as cytochrome P450 or glucuronosyltransferase enzymes), and the effects and routes of excretion of the metabolites of the drug. Pharmacokinetic properties of drugs may be affected by elements such as the site of administration and the dose of administered drug. These may affect the absorption rate. Pharmacokinetics is often studied in conjunction with pharmacodynamics, the study of a drug's pharmacological effect on the body.A number of different models have been developed in order to simplify conceptualization of the many processes that take place in the interaction between an organism and a drug. One of these models, the multi-compartment model, gives the best approximation to reality; however, the complexity involved in using this type of model means that monocompartmental models and above all two compartmental models are the most-frequently used. The various compartments that the model is divided into are commonly referred to as the ADME scheme (also referred to as LADME if liberation is included as a separate step from absorption): Liberation - the process of release of a drug from the pharmaceutical formulation. See also IVIVC. Absorption - the process of a substance entering the blood circulation. Distribution - the dispersion or dissemination of substances throughout the fluids and tissues of the body. Metabolization (or biotransformation, or inactivation) – the recognition by the organism that a foreign substance is present and the irreversible transformation of parent compounds into daughter metabolites. Excretion - the removal of the substances from the body. In rare cases, some drugs irreversibly accumulate in body tissue.The two phases of metabolism and excretion can also be grouped together under the title elimination.The study of these distinct phases involves the use and manipulation of basic concepts in order to understand the process dynamics. For this reason in order to fully comprehend the kinetics of a drug it is necessary to have detailed knowledge of a number of factors such as: the properties of the substances that act as excipients, the characteristics of the appropriate biological membranes and the way that substances can cross them, or the characteristics of the enzyme reactions that inactivate the drug.All these concepts can be represented through mathematical formulas that have a corresponding graphical representation. The use of these models allows an understanding of the characteristics of a molecule, as well as how a particular drug will behave given information regarding some of its basic characteristics. Such as its acid dissociation constant (pKa), bioavailability and solubility, absorption capacity and distribution in the organism.The model outputs for a drug can be used in industry (for example, in calculating bioequivalence when designing generic drugs) or in the clinical application of pharmacokinetic concepts. Clinical pharmacokinetics provides many performance guidelines for effective and efficient use of drugs for human-health professionals and in veterinary medicine.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report