Our aim has been to provide the subject material in clear, simple, concise, and affable manner, which is beneficial to students and practitioners alike. We have updated the text according to the most recent literature and guidelines. Additional pictures and tables have been added to make the reading easier and more comfortable. Recently introduced newer drugs for various diseases such as hypertension, diabetes mellitus, HIV, blood cancers, hepatitis C, etc., have also been included. The 2020 has been the year of great predicament and challenges for humankind posed by COVID 19 pandemic. A section is dedicated to the management of COVID 19 as well.

• The contents of the book are in accordance with the BDS curriculum as per Dental Council of India.
• The text is simple, clear, and concise and illustrated with the help of figures and tables. Many more has been added in the new edition to make the subject more comprehensible.
• The information provided is latest and is according to National/International guidelines where applicable.
• Recently introduced drugs have been mentioned in the text, particularly those in regard to diabetes mellitus, HIV, Hepatitis C, blood cancers, and tuberculosis.
• Tips are given at the end of each chapter explaining the importance and implication of knowledge in real practice.
• A section is dedicated to the ongoing Pandemic due to COVID 19.
• Multiple Choice Questions and Fill in the Blanks are given in each chapter for Self Assessment.