• 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
Illicit Internet availability of drugs subject to recall and patient safety
Illicit Internet availability of drugs subject to recall and patient safety

... which a product is either temporarily or permanently removed from the market, is often voluntarily initiated by the manufacturer or may be conducted at the request or order of a DRA [1]. It is important to note that depending on the jurisdiction, different terminology and categories of drug recalls, ...
formulation and evaluation of bilayer tablet of
formulation and evaluation of bilayer tablet of

... the receptor of parietal cell wall. Therefore, in this investigation attempt has been made to prepare S.R. tablet of Famotidine, so that tablets are retained in the stomach for a longer period and local delivery of drug increases due to the contact of drug with its absorption site at a constant rate ...
ORAL GLAUCOMA AGENT?
ORAL GLAUCOMA AGENT?

... ALLERGIC TO PENICILLIN? • Small percentage of patients will also be allergic to cephalosporins • Literature suggests anywhere from 3-10% cross-sensitivity • Alternatives: –cycline or -quinolone • Or a macrolide • Erythromycin, clarithromycin, azithromycin ...
Full Article-PDF - Pharma Research Library
Full Article-PDF - Pharma Research Library

... dementia. Dementia is a syndrome consisting of a number of symptoms that include loss of memory, judgment and reasoning, and changes in mood, behavior and communication abilities [1,2]. Rivastigmine is an anticholine esterase inhibitor that augments cholinergic transmission in the brain and reduces ...
March 2005 NL - American Institute of Stress
March 2005 NL - American Institute of Stress

... an almost 7-fold increase in risk for heart attacks with low dose Vioxx but that this was completely ignored in the approved label. The VIGOR clinical trial in 2000 found a five-fold increase with higher doses but the company stated that this was because it had been compared to naproxen (Naprosyn), ...
Pharmacogenomics: the end-ALL of Acute Lymphoblastic Leukemia?
Pharmacogenomics: the end-ALL of Acute Lymphoblastic Leukemia?

... methotrexate, dexamethasone, and vincristine). The aforementioned glucocorticosteroids are widely used to treat ALL; these enter cells through passive diffusion, ligand bind to a cystolic complex, and translocate to the nucleus where they regulate DNA-binding mechanisms, ultimately inducing apoptosi ...
File carboxylic acids-Chap 10 & 11
File carboxylic acids-Chap 10 & 11

... distributed without patent protection. A generic must contain the same active ingredients as the original formulation. In most cases, it is considered bioequivalent to the brand name counterpart with respect to pharmacokinetic and pharmacodynamic properties. By extension, therefore, generics are ass ...
Withdrawing Drugs in the US Versus Other Countries
Withdrawing Drugs in the US Versus Other Countries

... Another drug that has been banned in the U.S. but is available outside the U.S is pergolide (Permax), a dopamine receptor agonist used for the treatment of Parkinson’s disease. Permax was approved in 1988 as an adjunctive therapy with levodopa in Parkinson's disease. Valvular heart disease was first ...
10.4103-0975-1483.93570
10.4103-0975-1483.93570

... oral drug formulations have been used since the 1960s to enhance performance and increase patient compliance.[1] By incorporating the dose for 24 h into one tablet from which the drug is slowly released, peaks of high plasma concentration and troughs of low plasma concentration can be prevented.[2] ...
Regulation, Reimbursement, and the Long Road of
Regulation, Reimbursement, and the Long Road of

... testing for abacavir). The latter include tests such as assays for drug-metabolizing enzymes (e.g., CYP450s) that are relevant for the use of various drugs [12]. Although all these tests are developed after the drugs they are useful for, there are significant differences with respect to the level of ...
Selected examination methods in toxicology
Selected examination methods in toxicology

DOSE DEPENDENT EFFICACY OF LACOSAMIDE IN PROTECTION OF PENTYLENETETRAZOL  Research Article
DOSE DEPENDENT EFFICACY OF LACOSAMIDE IN PROTECTION OF PENTYLENETETRAZOL Research Article

... 0.5 to 1% of the population with annual incidence rate of approximately 30 to 50 per 100000 persons. Despite wide range of old and new antiepileptic drugs (AED), approximately 30% of the patients are still not seizure free [1, 2]. Anything that disturbs the normal pattern of neuronal activity such a ...
A Statistical Look at Risk Factors for Coronary Heart Disease
A Statistical Look at Risk Factors for Coronary Heart Disease

... obtained and the programming facilities simplified the task of reducing the dataset to include analysable patients only. An assessment of the break-down of the patient numbers by sex and treatment is as follows : Drug A (%) ...
Meclizine HCI Tablets, USP Rx Only
Meclizine HCI Tablets, USP Rx Only

... Clinical studies establishing safety and effectiveness in children have not been done; therefore, usage is not recommended in children under 12 years of age. ...
Management of Ocular Pain and Inflammation
Management of Ocular Pain and Inflammation

... •Huge dosage range: 100-5000mg/d •Must start slow •Must give enough •Start 300mg BID X 3 D, then TID prn THE HEADACHE PILLS-NEVER USE THEM •HA is a DX of exclusion •Don’t cover-up undiagnosed pain •We must exclude other causes, but WE don’t make the final DX •Let PCP or neurologist manage pain AFTER ...
international journal of leprosy - Publicaciones
international journal of leprosy - Publicaciones

... and visited the Cabo Blanco leprosy hospital with us. After a discussion regarding the possible therapeutic action of thiosemicarbazone in leprosy, the possibility that tolerance of the drug might be better in leprosy than in tuberculosis, and the possibility that in leprosy it might prove superior ...
Obtaining P-Values for Clinical Research Efficacy Reports
Obtaining P-Values for Clinical Research Efficacy Reports

... descriptive statistics for each drug studied and p-values. Descriptive statistics (n's means, medians, etc.) are readily output into datasets by SASR procedures such as MEANS and UNIVARIATE. P-values, which are used to determine the statistical significance of clinical results, may be listed in a pr ...
nuplazid - Acadia Pharmaceuticals
nuplazid - Acadia Pharmaceuticals

... reduction in body weight and food consumption at the highest dose. Administration of pimavanserin to pregnant rats during pregnancy and lactation at oral doses of 8.5, 26, and 51 mg/kg/day, which are 0.14- to 14-times the MRHD of 34 mg/day based on AUC, caused maternal toxicity, including mortality, ...
Alertec - Patented Medicine Prices Review Board
Alertec - Patented Medicine Prices Review Board

... international prices identified in an IPC Test. See the PMPRB’s Compendium of Guidelines, Policies and Procedures for a more complete description of the Guidelines. As shown in Table 1, the cost of treatment of Alertec is significantly higher than the cost of its comparators. However, it was consid ...
23900700150 - Madhya Pradesh Commercial Tax Appellate Board
23900700150 - Madhya Pradesh Commercial Tax Appellate Board

... 3(b)"drug'includes(i) all medicines for internal or extemal use of human beings or animals and all substances intended to be used for or in the diagnosis, treatment, mitigation or prevention of any disease or disorder in human beings or animals, including preparations applied on human beings or anim ...
Computational Biology
Computational Biology

...  develop inhibitors with 'appropriate' specificity that target multiple kinases involved in the disease process while avoiding kinases implicated in side effects. ...
Policy for the Administration of the First Dose of an Intravenous
Policy for the Administration of the First Dose of an Intravenous

... another practitioner. This is also the case for the administration of drugs requiring dosage calculations and where dose is varied according to weight. It is unacceptable to prepare substances for injection in advance of their immediate use or to administer medication drawn into a syringe or contain ...
Oral Fluid Drug Screen Device
Oral Fluid Drug Screen Device

... This assay provides only a preliminary analytical test result. A more specific alternate chemical method must be used in order to obtain a confirmed analytical result. Gas chromatography/mass spectrometry (GC/MS) and gas chromatography/tandem mass spectrometry (GC/MS/MS) are the preferred confirmato ...
Stop Drugging Our Elders!
Stop Drugging Our Elders!

...  Biological needs – food, shelter, activity  Psychological needs – choice, control, connection ...
Read More… - Envisia Therapeutics
Read More… - Envisia Therapeutics

... “Envisia is extremely proud to have such a great showing of data at the ARVO 2014 Annual Meeting, which is revered by both scientists and practitioners internationally,” said Ben Yerxa, PhD, Chief Scientific Officer of Envisia. “We believe our technology provides a white space of opportunity that wi ...
< 1 ... 333 334 335 336 337 338 339 340 341 ... 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