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DEVELOPMENT AND VALIDATION OF A RP-HPLC-PDA METHOD FOR THE ANALYSIS... LORNOXICAM IN BULK, TABLETS AND POWDER FOR INJECTION
DEVELOPMENT AND VALIDATION OF A RP-HPLC-PDA METHOD FOR THE ANALYSIS... LORNOXICAM IN BULK, TABLETS AND POWDER FOR INJECTION

... percent relative standard deviation (% RSD) was calculated and it was found to be 0.45 and 0.98 respectively, which is within the acceptable criteria of not more than 2.0. The results are shown in Table 3. The System suitability parameters like number of theoretical plates (N) was found to be 3600, ...
Drugs on Skeletal Muscle
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... Cyclodextrins (CyDs) are cyclic oligosaccharides consisting of usually six, seven, or eight glucose units (α-, β- and γ-CyDs, respectively) bound by 1,4-glycosidic linkages [4]. CyDs are known to form inclusion complexes with lipophilic drugs and improve their low water solubility, dissolution rate ...
DEAR PHYSICIAN: This letter is being provided as a sample... your payor interactions concerning reimbursement for the administration of
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Opioid Abuse and Dependence - Alcohol Medical Scholars Program
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Grapefruit Seed extract
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Antiepilepsy Drugs: pharmacodynamics and

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treatment of vernal conjunctivitis
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Structure-based design of enzyme inhibitors and receptor ligands
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... thrombin [62]. A first lead structure, 13 (Figure 3) [24,63], including several of these structural elements in a much simpler molecule, was not only very active but also highly selective, compared to its action on the homologous serine protease, trypsin. Removal of the β-diketone partial structure ...
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Opioid analgesics

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From Molecule to Dose Form – Accelerated Bioavailability
From Molecule to Dose Form – Accelerated Bioavailability

... Finally, insoluble drugs can be combined with macromolecules. Drug-macromolecule conjugates can: i) assist drug solubilization, ii) decrease drug toxicity, iii) prevent drug degradation and iv) achieve drug targeting [27,28]. Hyaluronic acid, polyethylene glycol (PEG), hydroxypropylmetacrylamide (HP ...
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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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