B4-Psychopharmacology Flashcards
Drug effect
The changes a drug produces in an animal’s physiological processes and behavior
Psychopharmacology
The study of the effects of drugs on the nervous system
Site of action
A location at which molecules of drugs interact with molecules located on or in cells of the body, this affecting some biochemical processes of these cells
Pharmacokinetics
The process by which drugs are absorbed, distributed within the body, metabolized, and excreted
Intravenous (IV) injection
Injection of a substance directly into a vein
Intraperitoneal (IP) injection
Injection if a substance into the peritoneal cavity-the space that surrounds the stomach, intestines, liver, and other abdominal organs
Intramuscular (IM) injection
Injection of a substance into a muscle
Subcutaneous (SC) injection
Injection of a substance into the space beneath the skin
Oral administration
Administration of a substance into the mouth, so that it is swallowed
Sublingual administration
Administration of a substance by placing it beneath the tongue
Intrarectal administration
Administration of a substance into the rectum
Inhalation
Administration of vaporous substance into the lungs
Topical administration
Administration of a substance directly onto the skin or mucous membrane
Intracerebral administration
Administration of a substance directly into the brain
Intracerebroventricular (ICV) administration
Administration of a substance into one of the cerebral ventricles
Dose-response curve
A graph of the magnitude of an effect of a drug as a function of the amount of drug administration
Therapeutic index
The ratio between the dose that produces the desired effect in 50 percent of the animals and the dose that produces toxic effects in 50 percent of the animals
Affinity
The readiness with which two molecules join together
Tolerance
A decrease in the effectiveness of a drug that is administered repeatedly
Sensitization
An increase in the effectiveness of a drug that is administered repeatedly
Withdrawal symptom
The appearance of symptoms opposite to those produced by a drug when the drug is administered repeatedly and then suddenly no longer taken
Placebo
An inert substance that is given to an organism in lieu of a physiologically active drug; used experimentally to control for the effects of mere administration if a drug
Antagonist
A drug that opposes or inhibits the effects of a particular neurotransmitter on the post synaptic cell
Agonist
A drug that facilities the effects of a particular neurotransmitter on the postsynaptic cell
Direct agonist
A drug that binds with and activates a receptor
Receptor blocker
A drug that binds with a receptor but does not activate it; prevents the natural ligand from binding with the receptor
Direct antagonist
A synonym for receptor blocker
Noncompetitive binding
Binding of a drug to a site on a receptor; does not interfere with the binding site for the principal ligand
Indirect antagonist
A drug that attaches to a binding site on a receptor and interferes with the action if the receptor; does not interfere with the binding site for the principle ligand
Indirect agonist
The drug that attaches to a binding site on a receptor and facilitates the action of the receptor; does not interfere with the binding site for the principal ligand
Acetyl-CoA
A cofactor that supplies acetate for the synthesis of acetylcholine
Choline acetyltransferase (ChAT)
The enzyme that transfers the acetate ion from acetylcholine coenzyme A to choline, producing the neurotransmitter acetylcholine
Botulinun toxin
An acetylcholine antagonist; prevents release by terminal buttons
Black widow spider venom
A poison produced by the black widow spider that triggers the release of acetylcholine
Neostigmine
A drug that inhibits the activity of acetylcholinesterase