Chapter 9 – General Anaesthetic Agents

Mar 7, 2021 by in ANESTHESIA Comments Off on Chapter 9 – General Anaesthetic Agents

Abstract Our understanding of the mechanisms involved in the action of general anaesthetics has increased considerably in recent times and is discussed below. This is followed by sections discussing intravenous…

read more

Chapter 14 – Adrenoceptor Antagonists

Mar 7, 2021 by in ANESTHESIA Comments Off on Chapter 14 – Adrenoceptor Antagonists

Abstract α-Adrenoceptor antagonists (α-blockers) prevent the actions of sympathomimetic agents on α-adrenoceptors. Certain α-blockers (phentolamine, phenoxybenzamine) are non-specific and inhibit both α1– and α2-receptors, whereas others selectively inhibit α1-receptors (prazosin)…

read more

Chapter 11 – Local Anaesthetics

Mar 7, 2021 by in ANESTHESIA Comments Off on Chapter 11 – Local Anaesthetics

Abstract Individual nerve fibres are made up of a central core (axoplasm) and a phospholipid membrane containing integral proteins, some of which function as ion channels. Chapter 11 Local Anaesthetics…

read more

Chapter 10 – Analgesics

Mar 7, 2021 by in ANESTHESIA Comments Off on Chapter 10 – Analgesics

Abstract Pain is defined as an unpleasant sensory and emotional experience associated with actual or potential tissue damage. Since pain is so highly subjective, it may also be described as…

read more

Chapter 6 – Pharmacokinetic Modelling

Mar 7, 2021 by in ANESTHESIA Comments Off on Chapter 6 – Pharmacokinetic Modelling

Abstract Pharmacokinetics is the study of the way in which the body handles administered drugs. The use of mathematical models allows us to predict how plasma concentration changes with time…

read more

Chapter 8 – Medicinal Chemistry

Mar 7, 2021 by in ANESTHESIA Comments Off on Chapter 8 – Medicinal Chemistry

Abstract Structure–activity relationships (SAR) describe how the structure of related drugs influences their behaviour, for example whether they are agonists or antagonists. In order to understand how differences in drug…

read more

Chapter 7 – Applied Pharmacokinetic Models

Mar 7, 2021 by in ANESTHESIA Comments Off on Chapter 7 – Applied Pharmacokinetic Models

Abstract In the previous chapter we explored the mathematical principles and models that can be used to predict plasma concentrations of drugs, particularly compartment models. This chapter will discuss the…

read more

Chapter 4 – Drug Interaction

Mar 7, 2021 by in ANESTHESIA Comments Off on Chapter 4 – Drug Interaction

Abstract Interactions occur when one drug modifies the action of another. This interaction may either increase or decrease the second drug’s action. Sometimes these interactions result in unwanted effects, but…

read more

Chapter 5 – Isomerism

Mar 7, 2021 by in ANESTHESIA Comments Off on Chapter 5 – Isomerism

Abstract Isomerism is the phenomenon by which molecules with the same atomic formulae have different structural arrangements – the component atoms of the molecule are the same, but they are…

read more

Chapter 3 – Drug Action

Mar 7, 2021 by in ANESTHESIA Comments Off on Chapter 3 – Drug Action

Abstract Drugs may act in a number of ways to exert their effect. These range from relatively simple non-specific actions that depend on the physicochemical properties of a drug to…

read more
Get Clinical Tree app for offline access