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Full Text Article - European Journal of Pharmaceutical and Medical
Full Text Article - European Journal of Pharmaceutical and Medical

... result of deep dermal, subcutaneous and/or submucosal swelling.[4] It is typically non pitting, skin coloured or erythematous and occurs at areas where the skin is lax. It is generally self limiting but may sometimes result in respiratory tract obstruction, which can prove fatal.[1] Drug induced ang ...
Effects of UN and Russian Influence on Drug Policy in Central Asia
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... with drug use—such as opioid substitution treatment, needle and syringe exchange and supervised drug consumption sites—notwithstanding the clear conclusions reached by the legal advisers of the UN drug control program that such interventions are permissible under the Conventions.106 As a number of c ...
Direct and Indirect Effects of Pseudoephedrine on the Intrinsic
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... worked directly and/or indirectly on a fetal heart system, by utilizing five different PSE concentrations (lowest to highest), this research was also able to illustrate the dose-response relationship between this drug and its effects on the heart. It is important to note that around the lowest conce ...
Guidelines for the Use of Antiretroviral Agents in Adults
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... In people, plasma concentrations of THC peak five to 12 minutes after inhalation and two to three hours after ingestion.1 The onset of effects occurs within six to 12 minutes after inhalation and 30 to 60 minutes after ingestion.1 The most common route of exposure for animals is oral. In dogs, the o ...
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... resulting in prolongation of its half-life and hypoglycaemic activity. Thus the increased hypoglycemic activity observed in rats/rabbits when administered in combination might be the result of inhibition of gliclazide metabolism by amiodarone thereby resulting in prolongation of gliclazide levels in ...
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... addition; it has the potential for slowing the progression of diabetic retinopathy. For these reasons, it appears to be a drug of choice in prolonged therapy for the control of NIDDM. In the long‐term, it reduces hepatic gluconeogenesis and increases insulin effects by acting at receptor or post‐rec ...
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... A floating dosage form is a feasible approach especially for drugs which have limited absorption sites in upper small intestine. The controlled, slow delivery of drug to the stomach provides sufficient local therapeutic levels and limits the systemic exposure to the drug. This reduces side effects t ...
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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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