The eighth edition of the book has been prepared with a few additional features. The Degree students in Pharmacy in India and Abroad shall be able to use the latest informations pertaining to the expanded subject matter–presentation style–classical examples–drug synthesis–drug design–SARs–explanations and–applications. It includes an Appendix—Cholinergic Neurotransmitters which may be of immense use for the students and the faculty. Corrections have been carried out in about a dozen problems. Key Features: Fundamentals duly articulated in a methodical–systematic–lucid manner Course of synthesis has been expatiated Latest trends/examples included in most chapters Synchronized coverage of expression in style duly dealt with Collaboration of up-to-date informations Simple and lucid expression of thoughts Substantiation of each chapter with intensive and extensive latest subject matter Critical and typical examples included appropriately Addressing to newer approaches related to various relevant topics and scientific overview Latest Informations to : Internet Blogs, Pharmaceutical Publications, Research Reports, and Scientific Journals.