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Histamine and Antihistaminic Agents
Histamine and Antihistaminic Agents

... This is most evident among the first generation agents many of which function as antagonists at muscarinic receptors and, to a lesser extent, adrenergic, serotonergic and dopamine receptors. While some of these non-target receptor interactions may be of some therapeutic value (as discussed above), m ...
FDA
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ANTIMICROBIAL DRUGS
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Pulmonary complications of intravenous drug misuse. 1
Pulmonary complications of intravenous drug misuse. 1

... or a candle, and removed from the heat as An understanding of the types of substances soon as bubbles appear. Other forms of heroin used in intravenous drug misuse and their (for example, "brown" heroin) are poorly method of preparation will help the clinician soluble in water and require acidificat ...
DIAZEPAM Oral Solution 5 mg per 5 mL DIAZEPAM
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... Because of varied responses to CNS-acting drugs, initiate therapy 1 mg to 2 1/2 mg, 3 or 4 times daily initially; in­crease with lowest dose and increase as required. Not for use in children gradually as need­ed and tolerated. under 6 months. ...
Development and application of highly sensitive high−performance
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Medicaid Preferred Drug Program Annual Report to the Governor and Legislature State Fiscal Year 4/1/10 to 3/31/11
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... among drugs in the therapeutic classes chosen for review. If the P&TC establishes that one drug is significantly more effective and safe than others in the class, that drug must be preferred without consideration of cost. If the P&TC ascertains that there is no substantial clinical difference among ...
Guideline on clinical investigation of new medicinal
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... Comment: The guidance states that if the investigation drug has a different mechanism to that of standard therapy then it should be given in addition to standard therapy in the study. While this has been how drugs have been developed for this population of patients to date, looking at some recent fa ...
February 19, 2013 Drug Enforcement Administration Attention: DEA
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Designer Drugs: An Escalating Public Health Challenge
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... of choice and access. Primary sources are unregulated laboratories in Asia. For example, manufacturers in various cities in China (Wuhan, Changzhou, Shanghai, Hangzhou, Beijing) directly market a variety of designer drugs on the internet as “research products” or chemicals, “not for human consumptio ...
Alan Goldhammer, PhD
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what is now known as the Hatch-Waxman Act.
what is now known as the Hatch-Waxman Act.

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... in regard to using or disclosing health care information; therefore, you would need to provide patient information when requested. If you do not have the record available when the inspector arrives, you would need to provide the requested information within the statutory requirements set out in the ...
Department of Pharmacology
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gangrenous ergotism

... skin and glandular secretions toad secretions have been used since ancient time…… ...
04_Intravenous infusion
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Exhibit B
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... formulation . Novartis goes on to conclude that the new formulation is more effective than the discontinued formulation because minimizing the potential for injection site pain reduces the risk of patient noncompliance (February 14, 2002, comment, p . 2). ...
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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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