• 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
Behavioral Health - National Association of Social Workers
Behavioral Health - National Association of Social Workers

... medication should be decreased over time (tapered) to prevent the individual from experiencing withdrawal symptoms. It is important that these individuals are monitored during this process to avoid withdrawal phenomena and other affects that may have negative consequences. Tolerance is defined as, “ ...
Carbamazepine overdose after exposure to simethicone
Carbamazepine overdose after exposure to simethicone

... seizures and trigeminal neuralgia [4]. The most important interactions affecting the disposition of CBZ are those resulting in the induction of its metabolism. Clinically, a variety of drug interactions between CBZ and co-administered drugs have been reported. The actions of most drugs that affect C ...
FORCED OXIDATIVE DEGRADATION STUDY OF DORIPENEM BY UV SPECTROPHOTOMETRIC METHOD  Research Article
FORCED OXIDATIVE DEGRADATION STUDY OF DORIPENEM BY UV SPECTROPHOTOMETRIC METHOD Research Article

... Doripenem is a novel, broad-spectrum parenteral carbapenem antimicrobial. Doripenem is a new carbapenem similar to meropenem and imipenem but different than ertapenem. Doripenem, like other carbapenems, is stable to most beta-lactamases including ampC betalactamases and extended-spectrum beta-lactam ...
OTC Drugs Monograph - Thai Self Medication Industry Association
OTC Drugs Monograph - Thai Self Medication Industry Association

...  In 2011, MFDS initiated evaluation on reclassification of ...
ANESTHESIOLOGY Paulo Vilanova Jr., MD Medstudents
ANESTHESIOLOGY Paulo Vilanova Jr., MD Medstudents

... some degree of cardiovascular depression when these drugs are used, mediated by direct effects on hemodinamics plus indirect effect by blocking the “adrenergic drive”. BNZs are avaliable for enteral and parenteral administration. Being lipophilic their clinical effect is observed at short period of ...
A4 Stable Angina
A4 Stable Angina

... Acute Therapy/Short-Term Prophylaxis Nitroglycerin (NTG) Efficacy - sx relief only; but no pain relief MOA - rapid systemic and coronary vasodilation (onset ~ 1min) -  preload and afterload -  O2 supply;  O2 demand Dosing - SL is tx of choice (avoids 1st-pass metabolism) - take 1 dose at onset of ...
Drugs used to treat hypertension
Drugs used to treat hypertension

... Influence on the arteriolar and left ventricular remodelling that are believed to be important in the pathogenesis of human essential hypertension and post-infarction state ...
Indigenous drug combination in the treatment of rhinosinal infections
Indigenous drug combination in the treatment of rhinosinal infections

... Balsamodendron mukul (Guggul): The Oleo-gum-resin exuded by this tree has been regarded as a sovereign remedy in ancient medicine. It is a bitter stomachic and carminative and improves digestion. It is quickly absorbed and is excreted by skin, mucous membranes and kidneys and in the course of excret ...
Histamine H2 - Receptor Antagonists
Histamine H2 - Receptor Antagonists

... therapy should be continued for 10 to 14 days. When used for nonulcer indigestion/heartburn, H2RA treatment duration should not exceed 14 days at the maximum dose, unless directed by a physician. Maintenance therapy, at recommended daily maintenance doses (Tables 1 and 2), may be continued indefinit ...
Importance of Functional Group Chemistry in the Drug
Importance of Functional Group Chemistry in the Drug

... provide much more water solubility than alcoholic hydroxyl groups, esters and amides(4). The other three routes of administration require a drug to possess adequate lipid solubility in order for it to cross various cell layers and enter the circulation. At the time in the semester when this case is ...
Formulation and Evaluation of Terbutaline Sulphate Loaded
Formulation and Evaluation of Terbutaline Sulphate Loaded

... evaporation technique, we successfully synthesized and evaluated sustained release inhalation nanoparticles with poloxamer 188 and eudragit RSPO as polymers. Keywords: Terbutaline sulphate, double emulsion, inhalation nanoparticles, pulmonary, drug delivery, solvent evaporation. ...
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS)
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS)

... dosing and plasma concentration and the effect of drug and the dose. Trigeminal neuralgia pain distribution showed marked intra individual with pain free nights and increased in the drop of pain during the mid day hours this later coincided in time with the peak plasma concentration of carbamazepine ...
Dr. Reddy Qs - Website of Neelay Gandhi
Dr. Reddy Qs - Website of Neelay Gandhi

... b) Resistance could occur due to decreased access to the site of action. c) Flushing, pruritus, redness of face & neck could occur with I.V. administration. d) ancomycin is used in C.difficile infection & effective in MRSA. e) It acts on non-growning, non-proliferting organism and a very good bacter ...
Guidance for timing of medication
Guidance for timing of medication

Pediatric Psychopharmacology
Pediatric Psychopharmacology

... Meanings, cont’d Many patients (especially teens) attach meaning to the medication itself. Once taken, the “pill” is psychologically incorporated into the patient’s view of himself/herself, and can change their sense of identity The meaning and significance of a drug can affect the way patients ...
Session 59 – Shoults, Stefanie
Session 59 – Shoults, Stefanie

... •July 2012: Congress passed and President Obama signed the ...
renal impairment studies in early development services
renal impairment studies in early development services

... (PPS) features a unique scientific/medical and operational model that enables us to conduct studies in patients with renal impairment following the same processes and guidelines that we apply to traditional Phase I or Phase IIa trials. This approach has demonstrated proven advantages compared to the ...
iCup Package Insert - Urine Drug Tests, Drug Testing Kit, Drug Tests
iCup Package Insert - Urine Drug Tests, Drug Testing Kit, Drug Tests

... principle of competitive binding. Drugs which may be present in the urine specimen compete against their respective drug conjugate for binding sites on their specific antibody. During testing, a urine specimen migrates upward by capillary action. A drug, if present in the urine specimen below its cu ...
pharmacological and analytical studies of the cyclin dependent
pharmacological and analytical studies of the cyclin dependent

... was administered orally at ZT3 or at ZT19. We found that exposure to roscovitine was 38% higher and elimination half-life was 100% longer when dosing at ZT3 compared to ZT19. Moreover the tissue AUC/plasma AUC was higher at ZT3 in kidney, adipose, testis and lungs. The opposite was found in liver. I ...
adverse drug events - Case Western Reserve University School of
adverse drug events - Case Western Reserve University School of

... Adverse Drug Events Type B Reactions • Etiology and epidemiology • Allergic/immune reactions • In susceptible patients alkylation and/or oxidation of cellular macromolecules by drug metabolites can lead to the production of immunogens  Not related to the dose administered  Specificity to a given ...
Joint Statement on the U.S. Food and Drug Administration`s
Joint Statement on the U.S. Food and Drug Administration`s

... order to classify products with identical active ingredients, dosage form, and route of administration. Since Levoxyl, for example, was not AB to Synthroid, we correctly anticipated that the FDA’s recent approval of additional generic products would lead to the implementation of three character desi ...
527_17Rettie_Non-Hem.. - University of Washington
527_17Rettie_Non-Hem.. - University of Washington

... understated, advancements in the field of non-P450–mediated metabolism have garnered increasing attention in recent years. This is perhaps a direct result of our ability to systematically avoid P450 liabilities by introducing chemical moieties that are not susceptible to P450 metabolism but, as a re ...
September 2015 - Institute For Safe Medication Practices
September 2015 - Institute For Safe Medication Practices

... could be reduced by optimizing the dose for each patient. However, a reduced dose 110 mg dabigatran capsule and the most accurate blood-level test are not approved in the U.S. The short half-life of rivaroxaban means that once-a-day dosing results in higher maximum concentrations and higher bleeding ...
recent advances in animal models of drug addiction
recent advances in animal models of drug addiction

... in conjunction with gene transfer and homologous recombination techniques to delineate the neural basis of druginduced reinforcement (15,74). The apparatus used in conditioning experiments consists of two environments that are differentiated from each other on the basis of color, texture, and/or lig ...
Pharmacy Technician*s Course. LaGuardia Community College
Pharmacy Technician*s Course. LaGuardia Community College

... Drugs  Called the NSAIDS  Excellent drugs for pain relief and reducing fever and inflammation  Developed as an alternative to corticosteroids  MOA: blocks the COX enzyme to block prostaglandin formation  Side effects are: severe GI bleeding (possible), GI upset and gastritis, kidney ...
< 1 ... 311 312 313 314 315 316 317 318 319 ... 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