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Drug Elimination
Drug Elimination

... excretion by the kidneys. From this can be derived an estimation of the creatinine clearance by the kidneys, in millilitres per minute (mL/min) or millilitres per second (mL/sec). This is the notional volume of serum that is cleared of creatinine in those times. The creatinine clearance is the 'poor ...
Fatality Involving the Ingestion of Phenazepam and Poppy Seed Tea Case Report
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... preparation of PST, as well as anonymous forums for discussion of its use are easily found following a web search for “poppy seed tea.” A widely used method for the preparation of PST involves washing or soaking generous quantities of dried seeds in water containing lemon juice. The resultant liquid ...
Therapeutic drug monitoring of atypical antipsychotic drugs
Therapeutic drug monitoring of atypical antipsychotic drugs

... CYPlA2. However, serum determinations showed an acceptably low mean intrapatient variability of 20 %, which means that serum clozapine determinations can be used to assess patient adherence. The high interindividual and low intraindividual variability of plasma clozapine concentrations confirm the u ...
Future Challenges - Thrombosis Research Institute
Future Challenges - Thrombosis Research Institute

... No important bleeding risk and/or adequate local haemostasis possible: Perform at trough level (i.e. 12 h or 24 h after last intake) ...
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the PDF

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... Several gender studies of the elderly suggest that the life expectancy of women is expected to be higher than men. In 2006-2010, the life expectancy of female is 68.1 in comparison to 65.8 of males which is expected to rise to 72.3 for females as compared to 69.02 for males during the period 2011-20 ...
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... The majority of patients with cancer suffer from pain, in particular during advanced stages of the disease [6]. The pain can originate from the tumor itself, but in many cases it occurs as a consequence of cancer chemotherapy. In particular vinca alkaloids, taxanes and platinum drugs, which are ofte ...
DFWP Prescription Drug Module 9.2007
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Untitled
Untitled

Chapter 19 - Laboratory Animal Boards Study Group
Chapter 19 - Laboratory Animal Boards Study Group

... How can the drugs in #74 be reversed? How do the side effects of these drugs differ from morphine? If you were using fentanyl and medetomidine as an anesthetic in a rat, what could you use to completely reverse the effects? What is tramadol? What is the unusual mechanism of tramadol's analgesic effe ...
Policosanol - ProThera Inc.
Policosanol - ProThera Inc.

... No adverse interactions with beta-blockers, diuretics, calcium-channel blockers, NSAIDS, or other medications have been reported. However, policosanol may enhance the blood-pressure lowering effect of propanolol and may have a synergistic action with aspirin. Caution is advised for patients taking a ...
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... basal insulin, received FDA approval to treat Type 1 and Type 2 diabetes • Same active ingredient as Lantus, but at three ...
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AMERICAN ACADEMY OF PEDIATRICS
AMERICAN ACADEMY OF PEDIATRICS

... Guidelines: Because they have the least sedative action and adverse gastrointestinal, cardiac, and hypotensive maternal side effects, the tricyclic antidepressants, nortriptyline and desipramine, are preferred during pregnancy. Reliable pharmacokinetic data exist to indicate a relationship between p ...
electrical signals control the cardiac activity
electrical signals control the cardiac activity

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Drug interaction



A drug interaction is a situation in which a substance (usually another drug) affects the activity of a drug when both are administered together. This action can be synergistic (when the drug's effect is increased) or antagonistic (when the drug's effect is decreased) or a new effect can be produced that neither produces on its own. Typically, interactions between drugs come to mind (drug-drug interaction). However, interactions may also exist between drugs and foods (drug-food interactions), as well as drugs and medicinal plants or herbs (drug-plant interactions). People taking antidepressant drugs such as monoamine oxidase inhibitors should not take food containing tyramine as hypertensive crisis may occur (an example of a drug-food interaction). These interactions may occur out of accidental misuse or due to lack of knowledge about the active ingredients involved in the relevant substances.It is therefore easy to see the importance of these pharmacological interactions in the practice of medicine. If a patient is taking two drugs and one of them increases the effect of the other it is possible that an overdose may occur. The interaction of the two drugs may also increase the risk that side effects will occur. On the other hand, if the action of a drug is reduced it may cease to have any therapeutic use because of under dosage. Notwithstanding the above, on occasion these interactions may be sought in order to obtain an improved therapeutic effect. Examples of this include the use of codeine with paracetamol to increase its analgesic effect. Or the combination of clavulanic acid with amoxicillin in order to overcome bacterial resistance to the antibiotic. It should also be remembered that there are interactions that, from a theoretical standpoint, may occur but in clinical practice have no important repercussions.The pharmaceutical interactions that are of special interest to the practice of medicine are primarily those that have negative effects for an organism. The risk that a pharmacological interaction will appear increases as a function of the number of drugs administered to a patient at the same time.It is possible that an interaction will occur between a drug and another substance present in the organism (i.e. foods or alcohol). Or in certain specific situations a drug may even react with itself, such as occurs with dehydration. In other situations, the interaction does not involve any effect on the drug. In certain cases, the presence of a drug in an individual's blood may affect certain types of laboratory analysis (analytical interference).It is also possible for interactions to occur outside an organism before administration of the drugs has taken place. This can occur when two drugs are mixed, for example, in a saline solution prior to intravenous injection. Some classic examples of this type of interaction include that Thiopentone and Suxamethonium should not be placed in the same syringe and same is true for Benzylpenicillin and Heparin. These situations will all be discussed under the same heading due to their conceptual similarity.Drug interactions may be the result of various processes. These processes may include alterations in the pharmacokinetics of the drug, such as alterations in the absorption, distribution, metabolism, and excretion (ADME) of a drug. Alternatively, drug interactions may be the result of the pharmacodynamic properties of the drug, e.g. the co-administration of a receptor antagonist and an agonist for the same receptor.
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