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 .
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
Generic Name: hydrocodon (G). Vicodin (T) (most widely prescribed drug). Oxycodon does
almost the same thing.
Abuse potential very high for Vicodin. Dependence inducing.
fluoxetine (G), Prozac (T).
Zoloft does the same thing. Slightly different chemical.