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SEIKO ABUBAKARI - Kwame Nkrumah University of Science
SEIKO ABUBAKARI - Kwame Nkrumah University of Science

... around a million of people a year, of which 75% are children under 5 years of age, drug assessment in this group is lower which complicate the choice of appropriate treatment. Quinine is re-emerging as an important drug in the treatment of multiple-drug resistant or severe Plasmodium falciparum mala ...
KINETIC STUDY OF ACAMPROSATE ABSORPTION IN RAT SMALL
KINETIC STUDY OF ACAMPROSATE ABSORPTION IN RAT SMALL

... been observed, with nausea and diarrhoea being the most frequent. Tolerance is usually good. However, due to the limited absorption of acamprosate, the drug is administered at relatively high doses (1998 mg/day if body weight is ≥60 kg or 1332 mg/day if body weight is <60 kg). Some dose-dependent ad ...
Product Monograph Template - Standard
Product Monograph Template - Standard

... with CELSENTRI was observed during studies of treatment-experienced subjects with HIV infection, although there was no overall increase in ACTG Grade 3/4 liver function test abnormalities. The overall incidence of hepatic adverse events and ACTG Grade 3/4 liver function test abnormalities in treatme ...
Positive and negative ion mode ESI-MS and MS/MS for - ORBi
Positive and negative ion mode ESI-MS and MS/MS for - ORBi

... minor groove is narrower and surrounded by the sugar-phosphate-sugar chains. Minor groove binders are synthetic molecules that interact with B-DNA in the minor groove. They have a crescent shape and fit in the minor groove without distorting the double helix. Hydrogen bond donor groups at the inner ...
Trental (pentoxifylline)
Trental (pentoxifylline)

... Overdosage with Trental (pentoxifylline) has been reported in children and adults. Symptoms appear to be dose related and usually occurred 4-5 hours after ingestion and lasted about 12 hours. Initial manifestations of acute overdose with pentoxifylline may be nausea, dizziness, tachycardia, fever, g ...
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Chapter 15 Antiepileptic Drugs
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Inhibition of Purified Factor Xa Amidolytic Activity May Not Be

... We decided to use a human plasma-based system to compare the relative potency of fXa inhibitors during cleavage of the physiological substrate prothrombin. The time course of thrombin generation was measured by following the kinetics of cleavage of a specific paranitroanilide substrate. The derivati ...
What inhibits xanax
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... cause sexual inhibition? I'm not asking if ot increases libido but will it . … alprazolam (Xanax), Agonist at benzodiazepine site on the GABA-A receptor. Cocaine, Inhibits 5HT, NE, and DA reuptake, blocks voltage-gated sodium . Jun 25, 2016 . Are you concerned about side effects with Xanax? antifun ...
product monograph
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... increases the synthesis and release of the other adrenal steroids, namely aldosterone and the adrenal androgens. It also has some degree of melanotropic activity and lipolytic effect. SYNACTHEN DEPOT (tetracosactide zinc injection), a long-acting synthetic β1-24corticotropin, exhibits the same activ ...
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... accumulation. In another report, liposomal tetracaine increased both drug permeation through, and deposition into, human skin compared to an ointment containing the same drug concentration [28]. The anesthesia recorded after liposomal application was even stronger and deeper than that obtained from ...
Preservative-Free Ophthalmic Products - Scope e
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... applications including parenteral therapies. For example, colloidal gels loaded with drugs have been studied as an injectable delivery system for use as an alternative to invasive surgery. Such gels are intended to accelerate the healing process and can be used as bone filler with shear thinning pro ...
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... of wheezing, breathlessness, chest tightness, cough and is usually associated with variable degree of bronchoconstriction and airflow limitation that is partly reversible either spontaneously or with treatment [1]. In 2007, it was estimated that 300 million people worldwide suffer from asthma and is ...
Emtriva - Gilead Sciences, Inc.
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... Significantly increased drug exposures were seen when EMTRIVA was administered to subjects with renal impairment [See Clinical Pharmacology (12.3)]. Therefore, the dosing interval or dose of EMTRIVA should be adjusted in patients with baseline creatinine clearance less than 50 mL per min using the f ...
ADHD Medication Guidelines
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... Starting dose is 0.5 mg/day in Compared to clonidine, evening and increase by lower chances/severity of similar dose every 7 days as side effects, especially indicated. Given in divided fatigue and depression. Also doses 2-4 times per day. Daily less headache, stomache, dose range 0.5 - 4mg/day. DO ...
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... The Ability to Discover Small Molecule Drugs for GPCR Targets That Historically have Evaded Small Molecule Drug Developers Several GPCR targets are currently thought to be beyond the reach of conventional competitive drug discovery approaches due to the complexity of the interaction of the endogenou ...
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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.
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