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Frog intestinal sac as an in vitro method
Frog intestinal sac as an in vitro method

... unsatisfactory results were obtained. Thus, it has been demonstrated that both the Caco-2 and the small-intestine like 2/4/A1 cell models are not able to predict FA for compounds exhibiting significant active transport mechanisms in vivo (Chong et al., 1996; Matsson et al., 2005). To account for the ...
Day 13.1a: Substance Use Description
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... Most widely consumed drug in the United States Such drugs increase alertness and increase energy Examples include amphetamines, cocaine, nicotine, and caffeine Neurobiological effects vary, but all act as “sympathomimetic” agents and seem to ultimately activate the “pleasure center” of the brain ...
ISOA/ARF Drug Development Tutorial
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cost effective analysis of commonly used topical drugs in
cost effective analysis of commonly used topical drugs in

... treatment of post-operative, surgically induced ocular inflammation. Although considered very effective, the use of topical corticosteroids is limited by well-known side effects which in some serious cases can precipitate vision loss, hence short and intermittent use is advisable. Topical non-steroi ...
Drugs Affecting the Autonomic Nervous System
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... Botulinum toxin: blocks the release of acetylcholine from vesicles. Black widow spider venom: causes all of the cellular Ach. stored in vesicles to spill into synaptic gap . Pirenzepine: a tricyclic anticholinergic drug that selectively inhibits M1 in the gastric mucosa. At therapeutic doses it does ...
Tricyclic Antidepressants
Tricyclic Antidepressants

... have been anecdotal reports of somnolence in infants whose mothers were taking SSRIs while breastfeeding. Tricyclic antidepressants. Amoxepine (not marketed by brand, generic available), although a tricyclic antidepressant rather than a neuroleptic (major tranquilizer), displays some of the more ser ...
Title Page Option 1 (Title Case 38 Points) Presentation subtitle in
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... • Substance Abuse and Mental Health Services Administration. Results from the 2010 National Survey on Drug Use and Health: volume 1: summary of national findings. Rockville, MD: Substance Abuse and Mental Health Services Administration, Office of Applied Studies; 2011. Available from URL: http://oas ...
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... be found in all organs, tissues and body fluid examined. These included spleen, adrenal glands, kidneys, gonads, liver, heart, lung, skeletal musculature, smooth muscle, retroperitoneal fatty tissue, brain, bone marrow, eyes, intestine, skin, blood and plasma. There was evidence that ciclopirox olam ...
Ivermectin for the treatment of demodicosis
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... 4. It has been explained to me that the possible side effects of the extralabel use of ivermectin may be dose-dependent or idiosyncratic (an individual hypersensitivity to the drug). ...
Drug Elimination and Clearance
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... filtration only (ie, the drug is neither reabsorbed nor secreted). Examples of such drugs are inulin and creatinine. Therefore, the clearance of inulin is equal to the GFR, which is equal to 125-130 mL/min. The value for the GFR correlates fairly well with body surface area. Glomerular filtration of ...
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... conveys an accurate and non-misleading impression of the benefits and risks of the promoted product. This proposition that risk communication be evaluated based on overall “net impression” and what “the piece as a whole conveys” about both “benefits and risks” can be reframed in terms of the NUNO pr ...
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... of these dosage forms viz. provides increase bioavailability of drug product, reduction in the frequency of administration to prolong duration of effective blood levels, Reduces the fluctuation of peak trough concentration and side effects and possibly improves the specific distribution of the drug. ...
Calculating equivalent doses of oral benzodiazepines
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... is available as 2mg tablets which can be halved to give 1mg doses. This means the dose can be reduced in stages of 1mg every 1-4 weeks or more. It is difficult to obtain such low doses of other benzodiazepines (6). Extra precautions apply in patients with hepatic dysfunction as diazepam and other lo ...
THE INFLAMMATORY RESPONSE
THE INFLAMMATORY RESPONSE

... -must be metabolized by hepatic microsomal enzymes to active form -long duration of action (half-life = 8h) -adverse effects less severe than other NSAIDS (ex. GI and renal) -ex. Clinoril Ketoprofen: -inhibits both cyclooxygenase and lipoxygenase (decreases PGs, TXs, and LTs) *recall LTs: bronchospa ...
Drug Overdose
Drug Overdose

...  Naloxone  can precipitate acute withdrawal  Flumazenil  may complicate further seizure management ...
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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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