Psychopharmacology
Read the topic background here, then explore the labeled visual and structured learning explanations on this page.
Read explanation on this page ↓ See diagram ↓Psychopharmacology — on-site reading
An introductory overview for this topic. The article introduction is reproduced here, so you do not need to leave MedAtlas to read it. It may not match the latest official medical guidance.
Psychopharmacology (from Greek ψυχή, psykhē, 'breath, life, soul'; φάρμακον, pharmakon, 'drug'; and -λογία, -logia) is the scientific study of the effects drugs have on mood, sensation, thinking, behavior, judgment and evaluation, and memory. It is distinguished from neuropsychopharmacology, which emphasizes the correlation between drug-induced changes in the functioning of cells in the nervous system and changes in consciousness and behavior.
The field of psychopharmacology studies a wide range of substances with various types of psychoactive properties, focusing primarily on the chemical interactions with the brain. The term "psychopharmacology" was likely coined by David Macht in 1920. Psychoactive drugs interact with particular target sites or receptors found in the nervous system to induce widespread changes in physiological or psychological functions. The specific interaction between drugs and their receptors is referred to as "drug action", and the widespread changes in physiological or psychological function is referred to as "drug effect". These drugs may originate from natural sources such as plants and animals, or from artificial sources such as chemical synthesis in the laboratory.
How this connects to Pharmacology
To study this topic responsibly, identify its normal structure or function, distinguish the main mechanism from its observable consequences, and ask which data can test a competing explanation. The subject foundations below outline these connections without pretending to be a specialist textbook chapter.
Text credit: Wikipedia contributors, “Psychopharmacology”, original article · authors & revision history · CC BY-SA 4.0. Unmodified opening extract, accessed 24 September 2026. This Wikipedia-derived section is provided under CC BY-SA 4.0; the independent MedAtlas notes and design are separate works.
Psychopharmacology · visual study map
Scalable vector illustration. Labeled conceptual map, not a precise anatomical, histological or diagnostic image.The wording in this learning map is adapted from the attributed Wikipedia background section below (CC BY-SA 4.0).
What the underlying subject studies
Pharmacology links a substance’s mechanism to the concentration reaching its target and the resulting physiological effect. Distinguish pharmacokinetics—how exposure changes—from pharmacodynamics—how a target responds.
How mechanisms and evidence connect
Benefits and harms depend on indication, route, dose, patient characteristics, organ function and interactions. A mechanism chart groups medicines for study but does not establish equivalence, superiority or an individual prescription.
How to develop a sound explanation
For each drug or drug class, identify the molecular target, intended effect, major limitations, common classes of adverse effects and how evidence and guidelines inform use. This library intentionally does not provide patient-specific doses or prescribing orders.
References and verification (optional)
All reading material on this page appears above. The links below are for checking the primary syllabus, research or source attribution, not requirements for opening this lesson.
NMC official CBME Curriculum 2024 and current regulations index ↗