PSYC 181 Lecture Notes - Lecture 5: Irreversible Antagonist, Inverse Agonist, Median Lethal Dose
Document Summary
Hallucinogens (psychedelics: legal classification (drug schedules) similar throughout world, but not exactly. Ex) heroin used for surgery in uk a drug may be scheduled in one country but not another. Schedule i (heroin, psilocybin, lsd, thc, mescaline)- cannot be prescribed, have no medical purpose. Schedule ii (morphine, cocaine, amphetamines)- lots of regulations: need a prescription that can only last 3 months, doctors can get in trouble for writing too many prescriptions. Schedule iii (asa w/codeine, anabolic steroids)- few restrictions. Drugs can move around ex) paregoric is schedule iii, while stronger opiate is a schedule ii drug. Also, unscheduled drugs can become scheduled if a problem arises (like tylenol) Pharmacokinetics- area of pharmacology dealing with the absorption, distribution, biotransformation and excretion of drugs: studies movement of drugs around body and into brain, drug must be able to get into and leave area. Factors affecting movement of drug: route of administration. Parenteral injection- injection via skin; unpopular- painful and can cause problems.
