• 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
Environmental Contamination test, Umea University
Environmental Contamination test, Umea University

... 1999). They are frequently used in France and the UK. An isolator is an enclosed compartment ventilated by positive air pressure with filtered air without recirculation. An isolator has a pass-through chamber with separate ventilation for cleaning and sterilizing goods to be entered or exited the is ...
cefovecin sodium
cefovecin sodium

... suspected bacterial infection is unlikely to provide benefit to treated animals and may increase the risk of the development of drug-resistant animal pathogens. The safe use of CONVENIA in dogs or cats less than 4 months of age (see Animal Safety) and in breeding or lactating animals has not been de ...
Rivotril
Rivotril

... treatment, because unwanted effects, such as sedation and apathy are more likely to occur. In such cases, the dosage of each drug must be adjusted to achieve the optimum desired effect. Pharmacokinetic Drug-Drug Interactions (DDI) The antiepileptic drugs phenytoin, phenobarbital, carbamazepine, and ...
File - Pharmacy Technician Toolkit
File - Pharmacy Technician Toolkit

... 6. A 500 ml TPN needs the addition of 33 mEq of sodium chloride. The label on the vial of concentrated sodium chloride injection has the following information: 30 ml single dose, 234 mg/ml, 4 mEq, and 23.4%. How many ml should be added to the TPN bag? ...
Emerging Drug Trends 2014
Emerging Drug Trends 2014

... Opiates, such as heroin and codeine, are derived from the poppy plant, which contains opium. Heroin is the most popular opiate, and has flooded the U.S. and reached a large market of American pain-pill addicts seeking a less-expensive high. Overdoses and emergency room visits have skyrocketed across ...
FORMULATION AND EVALUATION OF PULSATILE DRUG DELIVERY SYSTEM OF
FORMULATION AND EVALUATION OF PULSATILE DRUG DELIVERY SYSTEM OF

... Recently for local treatment of variety of colonic diseases and also for those drugs where a delay in drug absorption is required from a therapeutic point of view as in case of nocturnal asthma, arthritis and cardiac arrhythmias that are affected by circadian biorhythms 17. Apparently the colon has ...
Modern Methods in Drug Discovery
Modern Methods in Drug Discovery

... than the compound they have been derived from. Aimed are following properties: better mode of action improved selectivity increased bioavailability less toxic fewer adverse side effects ...
Physicochemical properties of drug action
Physicochemical properties of drug action

... ketones and chlorinated hydrocarbons exhibit narcotic activity and potency of each substance is related to its partition coefficient. Structurally non-specific action results from accumulation of a drug in some vital part of a cell with lipid characteristics. The structurally non-specific drugs incl ...
Ampicillin - IARC Monographs on the Evaluation of Carcinogenic
Ampicillin - IARC Monographs on the Evaluation of Carcinogenic

... The absence of exprimenta details precluded assessment of the only study of prenatal toxicity (Korzova et al., 1981). (iv) Genetic and related effects Ampicilin induced lysogenic phage in Staphylococcus aureus (Manthey et al., 1975). It did not induce a SOS response in Eschrichia coli PQ37 (Venier e ...
mdma/ecstasy - WordPress.com
mdma/ecstasy - WordPress.com

... It takes that long because the pill needs to reach the stomach, go to the liver, into the blood stream, then to the heart and finally to the brain. The effects of Ecstasy last for about 4 - 6 hours. Initially a user experiences a rush of energy and a feeling of euphoria, or really great happiness, t ...
PPT - The Citadel
PPT - The Citadel

... Synthesized in 1832 - It was discovered through the chlorination of ethanol in 1832; chloral hydrate was not used ...
Renal Dose Adjustment per Pharmacy
Renal Dose Adjustment per Pharmacy

Pharmacy Prior Authorization Form: Dispense as Written (DAW)
Pharmacy Prior Authorization Form: Dispense as Written (DAW)

... Brand medications with FDA Orange Book A-equivalent generics are covered for the brand copay plus the difference in cost between the brand and the generic allowed amounts, known as Member Pay Difference (MPD). If one of the above exception criteria is met, the brand copay will apply, but not the MPD ...
A Physician Survey of the Effect of Drug Sample
A Physician Survey of the Effect of Drug Sample

... prescribing behaviors,1–3 with an estimated $12 billion a year spent on drug advertising and marketing.4 Pharmaceutical companies currently use a multifaceted approach to drug promotion, incorporating techniques such as hospital and office detailing by pharmaceutical representatives, direct-to-consu ...
pps - Chair of Computational Biology
pps - Chair of Computational Biology

... than the compound they have been derived from. Aimed are following properties: better mode of action improved selectivity increased bioavailability less toxic fewer adverse side effects ...
Location research media
Location research media

... Location research- I have given the task of researching the location and also creating the production schedule. I also took part in filming and editing. We made sure that as a group we had chosen locations that would go with the scenes of the movie. Scene 1-This is where the first scene was filmed w ...
Drug Class 5-HT3 Receptor Antagonists (Anti
Drug Class 5-HT3 Receptor Antagonists (Anti

... Dolasetron undergoes rapid and near complete metabolism to the active metabolite hydrodolasetron in
Template Kwartaalbericht
Template Kwartaalbericht

... Figure 1. The number of dispensed Defined Daily Dosages (DDD=2g) for metformin from 1996 till 2001[3]. ...
daniels-broiler-3-2
daniels-broiler-3-2

... breastfed infant, or the effects of rolapitant on milk production. Rolapitant hydrochloride administered orally to lactating female rats was present in milk [see Data]. The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for VARUBI and an ...
Emory`s CNE Sept 13 WORD
Emory`s CNE Sept 13 WORD

... breastfed infant, or the effects of rolapitant on milk production. Rolapitant hydrochloride administered orally to lactating female rats was present in milk [see Data]. The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for VARUBI and an ...
ALDEN, an Algorithm for Assessment of Drug Causality in Stevens
ALDEN, an Algorithm for Assessment of Drug Causality in Stevens

... method. Results of ALDEN scores were strongly correlated with those of the EuroSCAR case–control analysis for drugs associated with EN (r = 0.90, P < 0.0001), with probable causality being reported in 218/329 exposures. ALDEN excluded causality in 321 drugs that the case–control analysis had describ ...
Sample pages 1 PDF
Sample pages 1 PDF

... as excipients. Actiq should be placed in the mouth against the cheek and should be moved around the mouth using the applicator, with the aim of maximizing the amount of mucosal exposure to the product. The Actiq lollipop should be sucked, not chewed, as absorption of fentanyl via the buccal mucosa i ...
The use of electric current – Iontophoresis for transcutaneous drug
The use of electric current – Iontophoresis for transcutaneous drug

... Many factors including the physiochemical properties of the compound, drug formulation, equipment used, biological factors, skin temperature and duration of iontophoresis effect the transport and can be divided into operational and biological factors.The following factors have to be considered: 1) I ...
Untitled
Untitled

... The full “Report on Drug Administration Procedures and Practices in Public Hospitals, 2005 edition” was prepared by the Working Group which comprises doctors, pharmacists and nurses from the institutions under the HA. The Working Group was appointed to review the existing drug administration systems ...
New Neonatal Abstinence Syndrome in NICU
New Neonatal Abstinence Syndrome in NICU

... Methadone is used to relieve moderate to severe pain that has not been relieved by non-narcotic pain relievers. It also is used to prevent withdrawal symptoms in patients who were addicted to opiate drugs and are enrolled in treatment programs in order to stop taking or continue not taking the drugs ...
< 1 ... 356 357 358 359 360 361 362 363 364 ... 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