pt. i. Mathematics. Basics -- Per cent and percentages -- Units and equivalences -- Drug strengths or concentrations -- pt. ii. Performing calculations. Dosage calculations -- Moles and millimoles -- Infusion rate calculations -- pt. iii. Administering medicines. Action and administration medicines -- Infusion devices -- Children and medicines -- The elderly and medicines -- Sources and interpretation of drug information -- Revision test -- Answers to problems set in chapters -- Appendices. Body surfaces area (BSA) estimates ; Weight conversion tables ; Height conversion tables ; Calculations of body mass index (BMI) ; Estimation of renal function ; Abbreviations used in prescriptions.