• 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
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 ...
Full Text Article
Full Text Article

... its safety is not completely identified and is used by clinicians in different ways and in varied populations on large number of patients. Thus many newer ADRs may be reported all of which need to be documented through this pharmacovigilance programme so that appropriate measures could be taken for ...
Evaluation of blood interactions with a drug loaded protein matrix Master thesis
Evaluation of blood interactions with a drug loaded protein matrix Master thesis

... When an implant is inserted, the activity of the osteoclasts, bone resorbing cells, increases which leads to an over-representation of cells that break down bone. The osteoblasts, which are responsible for bone formation, do not keep up with the increased resorption made by the osteoclasts This lead ...
Cardizem LA
Cardizem LA

... an antihypertensive effect, whereas there is only a modest fall in blood pressure in normotensives. Angina. Diltiazem has been shown to produce increases in exercise tolerance, probably due to its ability to reduce myocardial oxygen demand. This is accomplished via reductions in heart rate and syste ...
VAGINAL BLEEDING AFTER USE OF SINGLE DOSE ORAL
VAGINAL BLEEDING AFTER USE OF SINGLE DOSE ORAL

... Misoprostol is a synthetic prostaglandin E1 analogue. It can be used in both gastroenterological and obstetrical and gynecological conditions. In gastroenterology use, misoprostol therapy is indicated in patients who have duodenal or gastric ulcer due to use of non-steroidal anti-inflammatory drugs ...
Marine Origin Polysaccharides in Drug Delivery Systems
Marine Origin Polysaccharides in Drug Delivery Systems

... monomers (Figure 2). The proportion of M and G blocks may vary with the type of seaweed that it is  by a sequence of two (1Ñ4)-linked α-L-guluronate (G) and β-D-mannuronate (M) monomers (Figure 2). The proportion of M and G blocks may vary with the type of seaweed that it is extracted from. ...
AusPAR: Zonisamide
AusPAR: Zonisamide

G6PD deficiency: a classic example of pharmacogenetics with
G6PD deficiency: a classic example of pharmacogenetics with

... (Luzzatto & Poggi, 2009). The two drugs for which we have extensive detailed data are PQ and dapsone. As mentioned above, the clinical course of PQ-induced AHA (Fig 1) has been studied in a number of African-American normal volunteers (Tarlov et al, 1962). The clinical picture was very similar to th ...
Rocephin Prescribing Information
Rocephin Prescribing Information

... clearance and volume of distribution after a 50 mg/kg IV dose and after a 75 mg/kg IV dose in pediatric patients suffering from bacterial meningitis are shown in Table 3. Ceftriaxone penetrated the inflamed meninges of infants and pediatric patients; CSF concentrations after a 50 mg/kg IV dose and a ...
If this leaflet is difficult to see or read please contact the following
If this leaflet is difficult to see or read please contact the following

... Vancomycin is indicated in potentially life-threatening infections which cannot be treated with other effective, less toxic antimicrobial drugs, including the penicillins and cephalosporins. Vancomycin is useful in the therapy of severe staphylococcal infections in patients who cannot receive or who ...
UV-SPECTROPHOTOMETRIC AND RP-HPLC METHODS FOR THE ESTIMATION OF PRASUGREL
UV-SPECTROPHOTOMETRIC AND RP-HPLC METHODS FOR THE ESTIMATION OF PRASUGREL

... model 2200MH, Micropipette. HPLC condition ...
Safe Handling of Hazardous Drugs
Safe Handling of Hazardous Drugs

... a drug which displays one or more of the following characteristics: genotoxicity, carcinogenicity, teratogenicity or fertility impairment, or serious organ or other toxic manifestation at low doses in experimental animals or treated patients. The National Institute of Occupational Safety and Health ...
Preview the material
Preview the material

... acetaminophen that should be taken in a 24 hour period is 4000 mg. If someone who has dental pain or flu-like symptoms does not get relief with the standard dose, it is easy to decide that if two tablets taken four times day isn’t working, four tablets six times a day is the solution. Acetaminophen ...
investigation of electrostatic charging phenomena in dry powder
investigation of electrostatic charging phenomena in dry powder

... Dry powder inhalers (DPI) are an important drug delivery option, for the treatment of respiratory diseases, and, increasingly, for the delivery of systemically acting drugs and vaccines. Most DPI formulations consist of micronized drug blended with larger carrier particles. The interactions between ...
Full Prescribing Information
Full Prescribing Information

... To reduce the development of drug-resistant bacteria and maintain the effectiveness of DORYX and other antibacterial drugs, DORYX should be used only to treat or prevent infections that are proven or strongly suspected to be caused by susceptible bacteria. When culture and susceptibility information ...
encephalopathy due to prolonged misuse of ivermectin
encephalopathy due to prolonged misuse of ivermectin

... daily during 2 weeks. She developed an encephalopathy after approximately 10 days of this extensive daily regimen. We found a similar case report in the literature : Debonis and all (Ref 5) described a case of ataxia, slow speech and tremor after repeated daily intake of Ivermectin in a psychotic 46 ...
QA199.2 - Specialist Pharmacy Service
QA199.2 - Specialist Pharmacy Service

... Intrapleural administration of sclerosing agents may be painful. Discomfort can be reduced by administering a local anaesthetic via the drain prior to pleurodesis. The most frequently studied local anaesthetic for intrapleural administration is lidocaine. Analgesia should also be given to the patien ...
Australian public assessment for Thyroxine Sodium
Australian public assessment for Thyroxine Sodium

... The material is manufactured by chemical synthesis and is a single enantiomer. It is a white or slightly brownish-yellow, slightly hygroscopic, crystalline powder. It is very slightly soluble in water, slightly soluble in ethanol but dissolves in dilute alkali solutions. Note that although the Austr ...
Opioids analgesics and antagonists
Opioids analgesics and antagonists

... • Three distinct families of peptides have been identified: – enkephalins – endorphins – dynorphins ...
Treatment of Giardiasis
Treatment of Giardiasis

... last 40 years, the nearly 5,000 people hospitalized with giardiasis annually in the United States (149), and the millions infected worldwide, there have been few reviews of therapy for this infection and no definitive treatment protocols have been published (58, 113, 150, 165, 261). In addition, onl ...
Thyroxine Sodium - Therapeutic Goods Administration
Thyroxine Sodium - Therapeutic Goods Administration

... The material is manufactured by chemical synthesis and is a single enantiomer. It is a white or slightly brownish-yellow, slightly hygroscopic, crystalline powder. It is very slightly soluble in water, slightly soluble in ethanol but dissolves in dilute alkali solutions. Note that although the Austr ...
Targeting the dopamine D receptor in schizophrenia
Targeting the dopamine D receptor in schizophrenia

... glutamate receptors, exhibit such a correlation. Although this well-established finding in Figure 2 may be criticised as simply a relation between the D2-blocking concentrations and the clinical doses at which extrapyramidal signs first appear, it is important to note that the absolute concentration ...
FLUOXETINE-GA 20 mg - Actavis think smart medicine
FLUOXETINE-GA 20 mg - Actavis think smart medicine

... During pre-marketing testing of more than 5,600 US patients given fluoxetine, approximately 4% developed a rash and/or urticaria. Among these cases, almost a third were withdrawn from treatment because of the rash and/or systemic signs or symptoms associated with the rash. Clinical findings reported ...
Azithromycin for Injection, USP
Azithromycin for Injection, USP

... Comparison of the plasma pharmacokinetic parameters following the 1st and 5th daily doses of 500 mg intravenous azithromycin showed only an 8% increase in Cmax but a 61% increase in AUC24 reflecting a threefold rise in C24 trough levels. Following single oral doses of 500-mg azithromycin (two 250-mg ...
< 1 ... 38 39 40 41 42 43 44 45 46 ... 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