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Herbal Medicine for the Family Physician
Herbal Medicine for the Family Physician

... 1500 mg glucosamine sulfate or hydrochloride per day Likely safe in usual doses up to 3 years Likely effective for osteoarthritis symptoms after 4 weeks, comparable to NSAIDs, may prevent further deterioration In the lab glucosamine stimulates metabolism of chondrocytes in the articular cartilage an ...
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Click here for the PowerPoint presentation
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... The main purpose of this work was to study the chemical stability of optimized bioadhesive topical gel. For that Bioadhesive topical gel formulation  was  optimized  on  the  basis  of  bioadhesive  strength  and  in­vitro  drug  permeation  study  of  prepared  bioadhesive  topical  gel.  To  achie ...
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... Oxcarbazepine is a less potent inducer of CYP3A4 and UGT than carbamazepine. The adverse effects profile is similar to that of other antiepileptic drugs with respect to nausea, vomiting, headache, and visual disturbance. Phenobarbital: Phenobarbital was synthesized in 1902 and brought to the market ...


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... psychotic disorders or a predisposition to these disorders, and Hallucinogen Persisting Perception Disorder (HPPD), sometimes known as “flashbacks” (Halpern and Pope 2003, 1999; Abraham, Aldrige, and Gogia 1996). However, the incidence of such adverse effects is low and, when they do occur, they are ...
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... directs you to do so. Report any such symptoms to your doctor promptly. It is not known if this medication appears in breast milk. Consult your doctor before breastfeeding. DRUG INTERACTIONS: This drug should not be used with the following medications because very serious interactions may occur: MAO ...
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... for people who experience wearing-off of drug benefit between doses. People with Parkinson’s should be aware of which preparation they are taking, as there are many different pill sizes, colors, dose strengths and manufacturers. The decision about when to begin using carbidopa/levodopa is different ...
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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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