| Chapter No. | Chapter Title | Chapter Author | Page No. |
| 1 | Introduction | | 1 |
| Antibiotic Chemotherapy | | 1 |
| Antibiotic Resistance and its Consequences | | 3 |
| Combating the Microbial Resistance | | 4 |
| Natural Products and Their Role as medicines | | 4 |
| The Vedas | | 6 |
| Plants as a Source of natural medicines | | 8 |
| New Drug Discovery from Medicinal Plants | | 87 |
| Biological Activities of Phytochemicals | | 89 |
| Medicinal Plants and their Anti-Cancerous Activity | | 90 |
| medicinal Plants and Their Anti-Viral Activity | | 91 |
| Medicinal Plants and Their Anti-Bacterial Activity | | 92 |
| 2 | material and Methods | | 131 |
| Medicinal Plants Screened for Present Study | | 131 |
| Preparation of Crude Dry Power Extracts | | 144 |
| Microorganisms Screened for Present Investigation | | 147 |
| Preparation of cation-Adjusted Mueller-Hinton Broth | | 157 |
| Sterilization of Media, Glassware and Working Environment | | 157 |
| Preparation of Standard Antibiotic | | 158 |
| bacterial Bioassay | | 159 |
| Phytochemical Analysis | | 163 |
| Spectroscopic Analysis of Active Crude Extracts | | 164 |
| Chromatographic Analysis of Active Crude Extracts | | 164 |
| 3 | Results | | 165 |
| 4 | Discussion | | 207 |
| 5 | Summary | | 221 |
| 6 | Conclusion | | 227 |
