Pharmacokinetics, derived from the Greek words ‘pharmakon’ meaning drug, and ‘kinesis’ meaning movement, is the science that elucidates what the body does to a drug following administration. Pharmacokinetics is the study of how drugs move through the body. It includes processes like absorption, distribution, metabolism, and excretion (ADME), which determine how much of the drug … Read more
Introduction to General Pharmacology General pharmacology covers the fundamental principles of pharmacology, includingย Drug discovery and development,ย Souces of Drugs, Dosage forms, Routes of drug administration, Pharmacokinetics,ย Clinical Pharmacokinetics,ย Pharmacodynamics, Drug interactionsย andย Adverse drug reactions (ADRs). Understanding these principles is crucial for healthcare professionals, researchers, and students to act safely and effectively using medications. Drug Discovery and Development The Comprehensive … Read more
Oral drug absorption is a critical process that determines the efficacy and safety of a medication. The bioavailability of a drug depends on various factors, including physical properties, dosage forms, physiological factors, pharmacogenetic factors, and disease states. This article discusses these factors in detail to understand how they affect the absorption and bioavailability of orally … Read more
Routes of drug administration are critical in determining a medicationโs therapeutic effectiveness, safety profile, and patient adherence. Different routes allow clinicians to optimize how quickly and extensively an active compound reaches its intended site of action, while also accommodating specific disease conditions and patient factors. While numerous administration routes existโranging from oral ingestion to specialized … Read more
Introduction The administration of drugs is an essential aspect of medical practice. It involves the process of delivering medication to a patient’s body through various routes. The appropriate route of administration for a given situation depends on several factors, including the drug’s physical and chemical properties and patient-related factors. This chapter discusses the different routes … Read more
Introduction Drugs can be formulated into a wide variety of dosage forms to achieve the desired therapeutic effect. The choice of dosage form depends on factors such as the physicochemical properties of the drug, the intended route of administration, desired onset and duration of action, patient factors, and commercial considerations.[1] This article will provide an … Read more
Essential medicines are drugs selected to meet the priority health care needs of a population, chosen on the basis of publicโhealth relevance, comparative efficacy and safety, costโeffectiveness, and assured quality, forming the backbone of rational therapeutics, teaching, and formulary systems. Standard pharmacology textbooks present essential medicines as a framework that links evidenceโbased drug selection with … Read more
Introduction Have you ever wondered how drugs get their names? It’s not a random process but a well-structured system known as drug nomenclature. This article will take you on a journey through the intricate world of drug naming, shedding light on the logic and science behind the names on your medicine bottles. Drug Nomenclature: Drug … Read more
Introduction Drugs have transformed human health by treating infections, alleviating pain, controlling chronic conditions, and improving life expectancy. Historically, treatments emerged from rudimentary herbal or mineral remedies, refined through trial and error. Today, modern pharmacology leverages not only natural products but also advanced synthetic methods, biotechnology, and genetic engineering to create a broad arsenal of … Read more
The nature of drugs encompasses what drugs are, how they are named and sourced, how their physicochemical features determine interactions with biological targets and movement through the body, and how these principles unify pharmacodynamics and pharmacokinetics for rational therapeutics. Standard texts emphasize that drug action is defined by molecular targets and the laws of binding … Read more