Drugs, Lec 4.docx

4 Pages

Psychological & Brain Sciences
Course Code
CAS PS 333
Barak Caine

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Drugs, Lec 4:  01/24/2014 Drugs: A substance that alters physiology that is not a food or nutrient.  What about nutritional supplements? Nutri­ceuticals: (supplements) a substance that alters your physiology but comes from a plant. Not  controlled or regulated by FDA or ADA.  Most drugs that we use in society are derived from plants.  Behavior: Anything an organism does involving action (ex. raising temperature) (not necessarily  volitional) or response to stimulation.  How does the drug alter breathing or HR or temperature for ex? Pharmacology: Study of drugs.  Pharmacy: packaging and dispensing of drugs.  1. Analgesics: it’s a painkiller (therapeutic effect). Most widely used ones and most effective are  opioids. Bind to receptors in your body so your body processes NT signals . Pharmacodynamic classification:  Mechanism of action: opioids: opiate­like substances that your body makes: endorphin =  endogenous morphine. Drugs that alter physiology alter your opioid receptor physiology. Exogenous  substances are opiates: substances you get from the environment from plants, ex. poppy. Ex. Morphine  and Codeine.  Generic Name: hydrocodon (G). Vicodin (T) (most widely prescribed drug). Oxycodon does  almost the same thing.  Abuse potential very high for Vicodin. Dependence inducing.  2. Antidepressants:  Pharmacodynamic: SSRI.  fluoxetine (G), Prozac (T).  Zoloft does the same thing. Slightly different chemical.  Ceraphan 
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