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It is not normal to administer a pure drug to a patient. Almost all the drugs are administered in form of a medicine. A medicine is a mixture of one or more drugs combined or formulated with the other inactive materials known as excipients. Excipients themselves have no pharmacological activity however do have a major influence on how the drug is administered and absorbed. The formulation of drug into a medicine - whether it be in tablet, ointment, injection form or some kind of liquid solution - is usually necessary before it can be administered to humans. Every medicine is a highly sophisticated product carefully designed to fulfil its purpose, to ensure that the response to the medicine is the same each time it is administered.
The colour and shape of the tablets and capsules are controlled as an aid to recognition. Charts are available that enables us to recognize all the drugs sold as proprietary preparations. The colour of tablets and capsules is also utilized by manufacturers as a psychological means of increasing the drug's effect. If you look at one of the several drug identification charts available in your hospital pharmacy you will notice that the capsules that contain tranquillisers are in subdued, quiet colours (such as dark greens, blues and even blacks), while the capsules for antidepressants have vibrant colours (such as yellows and reds). These colour combinations are a subtle attempt to enhance the therapeutic effects of the medicine and constitute an example of using the 'placebo' effect in drug administration.
Utilizing the above information as well as information from your own sources, describe why the drugs are formulated into medicines.
Both endocrine and nervous system are major regulating system of the body; but nervous system has been compared to an airmail delivery system and the endocrine to pony express. Briefly explain the comparison.
What would happen if one were to inject both the R strain and heat-killed S strains into a host organism such as the mouse.
Determine which of these would synthesize the enzymes for Histidine synthesis
Given an amount of sunlight that hits the plants on our planet, and ability of plants for rapid growth and reproduction, how come we are not all hip deep in dead plants.
Plan a scientific experiment to find out the effect of this environmental factor on the rate of photosynthesis or cellular respiration in your chosen organism (reviews the scientific method, remember hypothesis, control so on.
Using the understanding of osmosis describe, why putting salt on a pork chop before cooking it on a grill is probable to result in a dry tough piece of meat.
Describe how the genetic material is organized in this virus. Monarch butterfly populations are found east and west of the Rocky Mountains. How could DNA fingerprinting technology be used to start that they constitute one breeding population or two s..
In a cross between a purple flowered plant and a white flowered plant, all 73 of the offspring had purple flowers. What are the most probable genotypes of the parent plants.
What other diseases are thought to be caused by the point mutations? What do point mutations do in those diseases.
Illustrate the metaphase cell of this culture showing predicted distribution of radioactivity on the autoradiograph.
A marine biologist has dredge up some unknown animal from the seafloor. Describe some of the characteristics she must look at to determine the animal phylum.
Under constant erosion and weathering, the pyrites leech large amounts of sulfuric acid (H2SO4). The spoil banks are also mixed with large quantities of basic limestone and clay carbonates. What have to occur over time.
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