理学研究生文凭（PGDipSci）是一个为期一年的课程，以本科科学学位为基础。该文凭包括论文和研究主题，可以全日制或兼读制。它仅通过论文提供进入理学硕士（MSc）学位的机会。药理学是关于化学物质对生物体的影响。实际上，它主要涉及药物对动物，特别是对人类的影响。它涉及药物如何产生作用，药物和其他化学物质的来源，特性，分布，消除和使用。药物作用可能有用，例如在医学上（临床药理学）或有害的（毒理学）。
Pharmacology is the science of the effects of drugs on biological systems, from the molecular level through to patient studies.Toxicology is the study of the harmful effects of chemicals. Toxicology courses at Otago cover both environmental and human toxicology, with a particular emphasis on drugs and drug development.<br>Pharmacology and Toxicology are at the forefront of modern medicine with a focus on developing drugs to treat important conditions, such as cancer, diabetes, neurological conditions and heart disease. Understanding Pharmacology is key to advancing research in almost all areas of biomedical research, while Toxicology is key to understanding human impacts in a changing world.<br>Graduates of our department go on to a wide range of careers including research, governmental, administration, and advisory positions.<br>Major employers include the National Poisons Centre, MedSafe, Pharmac, the Ministry of Health, Crown Research Institutes, universities, and pharmaceutical companies.<br>Pharmacology and Toxicology are also popular choices for students seeking a career in the professional medical sciences (e.g. Medicine or Pharmacy) or those pursuing a double degree in Law, Commerce, or Education.