This book contains precisely referenced chapters, emphasizing antibacterial agentswith clinical practicality and alternatives to synthetic antibacterial agents throughdetailed reviews of diseases and their control using alternative approaches. The bookaims at explaining bacterial diseases and their control via synthetic drugs replaced by chemicals obtained from different natural resources which present a future direction in the pharmaceutical industry. The book attempts to present emerging low cost and environmentally friendly drugs that are free from side effects studied in theoverlapping disciplines of medicinal chemistry, biochemistry, microbiology andpharmacology.