A drug is any chemical substance, other than a food or device, that affects the function of living things. Technically, vitamin E, oxygen, and cocaine are all examples of drugs. Various drugs can be used to treat illness, or they can be used recreationally to alter behavior and perception.
The definition is somewhat fuzzy, because many substances which are not typically considered drugs are indeed active substances (ex. caffiene, nicotine, and even chocolate). Additionally, there are thousands of substances in foods and "nutritional supplements" which affect the function of living things. Many illegal and recreational drugs (such as cocaine, opium, and ephedra) could potentially be considered "foods" because they do have caloric content. That being said, the popular definition of a drug is any substance which causes an altered state of mind, caffiene and alcohol excluded. This may or may not include medications, which are strictly used to cure illness and by definition not used for recreation.
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Patient Health Education
Pharmacy Information

Assessment of Medication Use in the Elderly - Reducing the risk of polymedicine can easily be accomplished with a complete drug history.
F.A. Davis Company - The features you find here complement and enhance the use of Davis's Drug Guide for Nurses, 6th Edition, Davis's Electronic Drug Guide, and the Nurse's Med Deck, 6th Edition.
Medication Misuse Among Older Adults - Ohio State University Extension, Senior Series. SS-128-97.
Meta Description: [ The consequences of mismanaging medications can be dangerous, and sometimes lethal. There are a number of reasons why misuse occurs: •Not understa ]
National Institute On Aging Age Page: Medicines: Use Them Safely - Tips on effective use of medications in the elderly.
NursingWorld - The American Nursing Association's position statement on polypharmacy in the older adult.
Nutritional Supplements Misuse Among Older Adults - Ohio State University Extension, Senior Series. SS-126-97.
Meta Description: [ Many people equate vitamins, minerals, and other nutritional supplements with only positive effects. Some examples of what can happen when a per ]
Senior Pharmassist - A program in Durham County that helps older adults with limited incomes purchase medications and coordinates with their healthcare providers to ensure effective and affordable medications for them.
Meta Description: [ Senior PHARMAssist's Web site ]
Should Medicare Cover Prescription Drugs? - Full-text article provided by the National Center for Policy Analysis.
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The MEDS Program - A consultation program that utilizes the skills of a geriatric trained pharmacist to evaluate the medication regimens of clients. Includes access to the senior care pharmacy mailing list.
Meta Description: [ The MEDS Program of Resources for Seniors (NC) is a comprehensive consultation program that
utilizes the skills of a geriatric trained pharmacist to evaluate the medication regimens of clients. ]
Why Older People Are at Risk for Medication Problems - Ohio State University Extension, Senior Series. SS-127-97.
Meta Description: [ Reasons for this include: Increased risk of chronic illness. Because 30%of prescription drugs are dispensed to people over 60 years of age, it is n ]
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