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IN VITRO RELEASE OF SODIUM DICLOFENAC FROM POLOXAMER 188 MODIFIED
IN VITRO RELEASE OF SODIUM DICLOFENAC FROM POLOXAMER 188 MODIFIED

... model drug. Because of its short biological half-life (1-2 hours), diclofenac sodium must be given frequently to maintain its therapeutic activity. Gastric ulcers, gastrointestinal bleeding, blood dyscrasias and anaphylaxis are potential life threatening side effects of diclofenac sodium [13]. To mi ...
dosage guide - Veterinary Medicines Directorate
dosage guide - Veterinary Medicines Directorate

... Use during pregnancy, lactation or lay In humans, mothers receiving antiepileptic medication have a 6 to 10% incidence of significant abnormality in their offspring. Neonatal sedation and drug dependence may occur if given close to term. Phenobarbital crosses the placental barrier and small amounts ...
Audio-Digest® FAMILY PRACTICE - Audio
Audio-Digest® FAMILY PRACTICE - Audio

... dopamine; serotonin; endorphins; γ-aminobutyric acid (GABA); glutamate; addictive drug enters brain, resulting in stimulation of substance-specific neurotransmitters; cocaine stimulates norepinephrine and dopamine in brain, while alcohol stimulates GABA (results in different experience and states of ...
PPT - ACoP7
PPT - ACoP7

... model. The relationship between drug dose, plasma concentration, biophase concentration (pharmacokinetics), and drug effect or side-effects (pharmacodynamics) is characterized, and relevant patient covariates are included in the model. Systematic application of this ...
Pharmacokinetics and Pharmacodynamics for Anesthesiologists
Pharmacokinetics and Pharmacodynamics for Anesthesiologists

... considerably less than 1. For these drugs, clearance is limited by the capacity of the liver to take up and metabolize the drug. These drugs are said to be “capacity dependent.” Any change in the capacity of the liver to metabolize such drugs will affect clearance. However, changes in liver blood fl ...
Gastroretentive Drug Delivery Systems As A Potential Tool For
Gastroretentive Drug Delivery Systems As A Potential Tool For

... glycolate, and croscarmelose sodium) and gas generating agnet (sodium bicarbonate). Formulations were evaluated for hardness, friability, weight variation, thickness, percentage swelling, in vitro drug release, floating lag time, total duration of floating, and mean residence time (MRT) in the stoma ...
Medicare Part D and Prescription Drug Utilization
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... This paper uses the substantial increase in prescription drug coverage for the elderly that resulted from the adoption of Part D to generate new estimates the impact of prescription drug insurance coverage on drug utilization. The analysis uses detailed data on a strongly balanced panel of those 65 ...
SUBSTANCE ABUSE AND THE ELDERLY
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... • Chronic ETOH abuse may actually increase liver enzyme induction and increase metabolism of some drugs (until the liver becomes really damaged) • Drug clearance may fluctuate because of this – especially in binge drinking. • With drugs like warfarin or anticonvulsants, this can have catastrophic co ...
Full Prescribing Information
Full Prescribing Information

... CYP2D6 Substrates with a Narrow Therapeutic Index: Increased plasma concentration of CYP2D6 substrates may result in potential adverse reactions. A three-fold increase in the exposure of dextromethorphan, a CYP2D6 substrate, was observed 7 days after a single dose of VARUBI. The duration of CYP2D6 ...
15. Recent Trends in Sustained Release Drug Delivery System
15. Recent Trends in Sustained Release Drug Delivery System

... Protein binding plays a significant role in its therapeutic effect regardless the type of dosage form as extensive binding to plasma increase biological half life and thus sometimes SR drug delivery system is not required for this type of drug. 10 Metabolism ...
د.ﺷﯾﻣﺎء Biopharmaceutics INTRAVENOUS INFUSION: IV solutions
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... IV solutions may be given either as a bolus dose or infused slowly through a vein into the plasma at a constant or zero-order rate. The main advantage for IV infusion is that: 1- IV infusion allows precise control of plasma drug concentrations to fit the individual needs of the patient. 2- For drugs ...
Parkinsonism
Parkinsonism

Efficacy of an Analgesic and Anti-inflammatory Ayurvedic Medicine
Efficacy of an Analgesic and Anti-inflammatory Ayurvedic Medicine

... like respiratory depression, apnea, nausea, vomiting, physical and mental dependence, etc. The other group, i.e. the nonsteroidal anti-inflammatory drugs (NSAIDs) are increasingly in use today. But these drugs also cause severe and sometimes fatal gastrointestinal bleeding, hyperacidity, which reduc ...
Patient Education/Discharge Planning
Patient Education/Discharge Planning

... (The drug alters urinary pH and causes crystals to form in urine.)  Monitor use of caffeine during drug  Instruct patient to avoid caffeine intake therapy. (Absorption of Cipro is decreased during drug therapy. by caffeine.)  Monitor plasma theophylline  Inform patient that serum levels will con ...
Evaluation for Zero-order Controlled Release Preparations of
Evaluation for Zero-order Controlled Release Preparations of

... Modern pharmaceutical technology has recently made dramatic progress in the case of drug delivery systems which are developed to obtain a stronger therapeutic eŠect from agents that have already been marketed as well as for use with novel compounds. Oral controlled-release preparations are a represe ...
3.7 Optical isomerism
3.7 Optical isomerism

... • These molecules are said to be chiral. The 2 optical isomers are called enantiomers. • The carbon with 4 groups attached is said to be the chiral centre / asymmetric carbon. • An equal amount of the of enantiomers in a mixture is called a racemic mixture / ...
Enhancement of Dissolution Rate of Domperidone Using Melt
Enhancement of Dissolution Rate of Domperidone Using Melt

... INTRODUCTION Dissolution is the process by which a solid solute enters a solution. It may be defined as the amount of drug substance that goes into solution per unit time under standardized conditions of liquid/solid interface, temperature and solvent composition. Dissolution is considered one of th ...
Severe hepatotoxicity by Indian Ayurvedic herbal products: A
Severe hepatotoxicity by Indian Ayurvedic herbal products: A

... The term drug refers basically to any synthetic drug, herbal drug, and dietary supplement including the herbal one. In the section 7 (search for non drug causes) the symbol of - denotes that the parameter has been evaluated and the result was negative. Total points: ≤ 0 = causality excluded. 1-2 = c ...
Insomnia - Consumer Reports
Insomnia - Consumer Reports

... Sleeping pills can be quite helpful if you have short-term insomnia for a few nights. They reduce the time it takes you to get to sleep, and they help you stay asleep. But sleeping pills are not a long-term solution for people who suffer frequent bouts of insomnia or who have trouble sleeping most n ...
Gemfibrozil is completely absorbed after oral administration of Lopid
Gemfibrozil is completely absorbed after oral administration of Lopid

... Gemfibrozil is completely absorbed after oral administration of Lopid tablets, reaching peak plasma concentrations 1 to 2 hours after dosing. Gemfibrozil pharmacokinetics are affected by the timing of meals relative to time of dosing. In one study (2), both the rate and extent of absorption of the d ...
Pacemaker-ICD/Drug Interaction
Pacemaker-ICD/Drug Interaction

... When a drug is prescribed for a patient with a permanent pacemaker or an implantable cardioverter defibrillator (ICD), consideration must be given to the potential interactions. Drug effect on pacemaker performance is usually thought to cause an increase or decrease in pacing threshold. From a pract ...
Analgesic Drugs
Analgesic Drugs

... weak organic acids (pKa 3-5) rapidly absorbed orally low first pass & high oral bioavailablity highly protein bound & have the potential to displace other drugs from plasma proteins. So potentiating the effects of these drugs, e.g. oral anticoagulant, anticonvulsant, Lithium, oral hypoglycaemic agen ...
ASMI
ASMI

... • What it is: Is a drug found in herbal products containing Ma haung, anti-asthmatic medications, and many cold and cough products. • Claims: Increases body fat loss • What really does: Acts as a CNS stimulant, delays fatigue by sparing body glycogen reserves. Increase in B/p respiratory, heart rate ...
Fabrication of Bucco-matrix tablets of Amoxicillin trihydrate on the
Fabrication of Bucco-matrix tablets of Amoxicillin trihydrate on the

O A  RIGINAL
O A RIGINAL

... Azathioprine is widely used in the treatment of other autoimmune diseases, cancer, and organ transplantation. In this study, the effect of azathioprine on renal tissue and serum markers of insulin resistance in rats were studied. Methods: In this research, 56 adult male wistar mouse with 80 to 90 da ...
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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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