PS268 Lecture Notes - Intramuscular Injection, Opiate, Therapeutic Index
Document Summary
The proteins that underlie action potentials and synaptic transmission are the direct targets of psychoactive drugs. Graph: drug (molecular) often mimics the (molecular) structure of an endogenous neurotransmitter. if they do not match up, they do not work. Of they do there is an effect. Da and norepinephrine that already exist in the brain are very similar to molecular structures of mdma, ephedrine, methamphetamine, or amphetamine. Seven major neurotransmitters and receptors tobacco acetylcholine. ***all of this drugs affect a specific structure, except for alcohol which affects many different ones. Receptors are not distributed evenly throughout the brain, and therefore drug effects on the brain will be greatest where the drug s receptors are located. The excitation or inhibition of specific brain regions (and peripheral regions) will be reflected in the drug-induced. Drug dose typically measured in mg milligrams (mg) or micrograms ( g )
