• 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
Lucrin® PDs Depot 3.75 mg
Lucrin® PDs Depot 3.75 mg

... breast cancer over 12 weeks. Mean leuprorelin acetate levels were above 0.1 ng/mL after four weeks and remained stable after re-injection (at 8 and 12 weeks). There was no tendency for drug accumulation. Distribution The mean steady-state volume of distribution of leuprorelin following intravenous b ...
Topiramate in Migraine Prevention
Topiramate in Migraine Prevention

... used in an off-label setting for migraine prophylaxis, the approval of topiramate represented the first AED to be indicated for migraine prevention. The tricyclic antidepressant amitriptyline, the calcium channel blocker flunarizine and the serotonin antagonist methysergide have also been used in th ...
The Placenta: Anatomy, Physiology, and Transfer of Drugs
The Placenta: Anatomy, Physiology, and Transfer of Drugs

cocaine  - addiction education home
cocaine - addiction education home

... these effects by cocaine urine status, an individual difference known to impact underlying cognitive functions and prognosis. Sixteen cocaine addicted individuals testing positive for cocaine in urine, 26 cocaine addicted individuals testing negative for cocaine in urine, and 23 healthy controls com ...
"Marijuana - Not Just Blowing Smoke"
"Marijuana - Not Just Blowing Smoke"

... Marijuana: Not Just Blowing Smoke Global Research and Development ...
Extract from the Clinical Evaluation Report for tenofovir disoproxil
Extract from the Clinical Evaluation Report for tenofovir disoproxil

... However, until recently, prevention of infection following sexual exposure in humans has not been demonstrated in large controlled clinical studies. Truvada is a fixed dose combination tablet of emtricitabine (FTC) and the pro-drug tenofovir disoproxil fumarate (TDF) given as a once daily tablet in ...
Cholinergic Urticaria
Cholinergic Urticaria

...  2)there is a higher frequency of autoimune diseases in patients with autoimune u  The older litrature suggest that chronic idiopathic u may be associated with chhronic infection especially dental and candida of the bowel but now it occures rarely if at ...
In Vitro Metabolism of Haloperidol and Sila-Haloperidol
In Vitro Metabolism of Haloperidol and Sila-Haloperidol

... metabolites formed were tentatively assigned as two separate hydroxylated products (OH1 and OH2), two diasteromeric N-oxides (N-oxide1 and N-oxide2), reduced haloperidol (red), and an N-dealkylated metabolite (N-dealk). The pyridinium ion metabolite, reduced haloperidol, and the first eluting N-oxid ...
adderall xr - Shire Canada
adderall xr - Shire Canada

... Amphetamine is known to inhibit monoamine oxidase, whereas the ability of amphetamine and its metabolites to inhibit various P450 isozymes and other enzymes has not been adequately elucidated. In vitro experiments with human microsomes indicate minor inhibition of CYP2D6 by amphetamine and minor inh ...
ICH Q3D Guideline (Elemental Impurities)
ICH Q3D Guideline (Elemental Impurities)

... Elemental impurities in drug products may arise from several sources; they may be added intentionally in synthesis, or may be present as contaminants (e.g., through interactions with processing equipment or by being present in components of the drug product) and are consequently detectable in the dr ...
Product Monograph
Product Monograph

Manual on rehabilitation and recovery of drug users
Manual on rehabilitation and recovery of drug users

... that took place in Italy, Spain and Sweden in 2016. San Patrignano, CeIS Rome, Dianova Spain and Basta Sweden have been actively engaged in the project, sharing expertise and views on addiction, shading light on the methodologies implemented in the recovery program they offer to drug addicts that wa ...
A Study of Anti-inflammatory effect of Heparin and Enoxaparin on
A Study of Anti-inflammatory effect of Heparin and Enoxaparin on

... Inflammation is basically a protective response against tissue damage either due to infection or local injury. Without inflammation infection would go unchecked, wound would never heal and become chronic. When inflammatory response is far greater than protective response, it would cause damage to th ...
Drug Wars - National Center for Case Study Teaching in Science
Drug Wars - National Center for Case Study Teaching in Science

... Ten-year-old Leia was taken to the on-call pediatric clinic that collaborates with her pediatrician’s office after a rough night of little sleep with severe wheezing and a frequent, dry cough. During the night, her mother had given Leia albuterol and fluticasone approximately every four hours using ...
Antipsychotic Medication
Antipsychotic Medication

... Patient unresponsive to antipsychotic trial often responds to another antipsychotic in a second trial Clozapine is usually considered only after second trial failure (when patient is considered treatment resistant) When switching from one antipsychotic to another, gradually decrease one drug while g ...
IN THE NAME OF GOD FAKHRADDIN FAIZI
IN THE NAME OF GOD FAKHRADDIN FAIZI

... Treatment of overdose: Monitor serum levels regularly, N-acetylcysteine should be available as a specific antidote; basic life support measures may be necessary. ...
CEFOPERAZONE SODIUM + SULBACTAM
CEFOPERAZONE SODIUM + SULBACTAM

... risks involved should be considered before instituting therapy (see section 5.3 Preclinical Safety Data “Use in Pediatrics”). Clostridium difficile associated diarrhea (CDAD) has been reported with use of nearly all antibacterial agents, including sulbactam sodium/cefoperazone sodium, and may range ...
Choosing a Regimen for Treatment of Latent Tuberculosis Latent
Choosing a Regimen for Treatment of Latent Tuberculosis Latent

... -Least costly DOT regimen -↓ side effects than INH BIW -Promising completion rates ...
Zerit_1212_515US12PBS00101wip3.indd 1 1/3/13 1:24 PM
Zerit_1212_515US12PBS00101wip3.indd 1 1/3/13 1:24 PM

... 5.1 Lactic Acidosis/Severe Hepatomegaly with Steatosis Lactic acidosis and severe hepatomegaly with steatosis, including fatal cases, have been reported with the use of nucleoside analogues alone or in combination, including stavudine and other antiretrovirals. Although relative rates of lactic aci ...
Pharmacogenetic studies of paclitaxel in ovarian cancer pharmacodynamics and
Pharmacogenetic studies of paclitaxel in ovarian cancer pharmacodynamics and

... Polymerase chain reaction P-glycoprotein Pyrophosphate Restriction fragment length polymorphism Relative risk Single nucleotide polymorphism Single strand conformation analysis Sonic spray ionization Trifluoroacetic acid ...
SW QA 174_4 Acitretin in RI or RRT
SW QA 174_4 Acitretin in RI or RRT

... During haemodialysis (HD) neither acitretin3, 4, 5 nor 13-cis-acitretin4 are thought to be removed by the dialysing membrane. Acitretin is unlikely to be dialysed through intermittent haemodiafiltration (HDF) or high-flux haemodialysis5. The RDD suggests that in patients undergoing standard or highf ...
Type I Diabetes: Adult Case Study
Type I Diabetes: Adult Case Study

... glucose intake in skeletal muscle and fat; inhibits hepatic glucose production. Pharmacokinetics: Absorption: Provides slower prolonged absorption with a relatively constant concentration over 24 hours. Distribution: Widely distributed. Metabolism: Partially metabolized at injection site to active i ...
ramelteon
ramelteon

... spectrum, IR spectrum), ****, ******* ************, related substances (HPLC), *****, and assay (HPLC) and ****************** was also to be tested in long-term and accelerated testings. At the long-term, accelerated, and stress (humidity) storage conditions, there was no change over time for all at ...
Ceftin (cefuroxime axetil) tablets USP - GlaxoSmithKline
Ceftin (cefuroxime axetil) tablets USP - GlaxoSmithKline

... In common with other antibiotics, cefuroxime axetil may affect the gut flora, leading to lower estrogen reabsorption and reduced efficacy of combined oral contraceptives. Drug-Laboratory Test Interactions A false-positive reaction for glucose in the urine may occur with copper reduction tests (Bened ...
Chloral hydrate has general CNS depressant effects believed to be
Chloral hydrate has general CNS depressant effects believed to be

... Trichloroethanol is 70 to 80% bound to plasma proteins and is widely distributed to all body tissues including CSF, breast milk and placenta. The half-life of trichloroacetic acid is longer, up to 100 hours. It is highly plasma protein bound (94%), primarily to albumin and may be responsible for int ...
< 1 ... 37 38 39 40 41 42 43 44 45 ... 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