This section teaches you how to choose your personal selection of drugs (called P-drugs). It explains the principles of drug selection and how to use them in practice. Chapter 2 explains why you should develop your own list of P-drugs. It also tells you how not to do it. Chapter 3 gives a detailed example of selecting P-drugs in a rational way. Chapter 4 provides the theoretical model with some critical considerations, and summarizes the process. Chapter 5 describes the difference between P-drug and P-treatment: not all health problems need treatment with drugs.

When selecting your P-drugs you may need to revise some of the basic principles of pharmacology, which are summarized in Annex 1.