Psychology 2020A/B Chapter Notes - Chapter 3: Nicotine Patch, Digoxin, Ibuprofen
13 Jul 2012
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Chapter 3: how drugs work in the body and on the mind. Oldest and easiest way of taking drugs. Begins after 5 mins after ingestion, but full ingestion is complete 6 8 hours. When consumed orally, you usually have to take higher doses. Read the 3 types of injection from textbook (pg 62-63)! If injected into a muscle = high absorption. Second easiest way of taking a drug. Reaches the brain faster than any other way, 5-8 seconds. When the drug passes through membranes outside of the body. Whne ppl snort cocaine it sticks to the mucus and goes through the nasal membrane. Rectal suppository absorped from the anus. Oral is the slowest method of drug admin. Third slowest injection, the most dangerous b/c ppl can inject high doses at a time. Biotransformation - drugs are broken down to smaller pieces called metabolites. Usually drugs are water soluble, they are eliminated by urine, sweat and exhalation.
