Drugs from Natural Sources
Natural products played critical roles in present drug development, especially for antibacterial and antitumor agents. Even though popularity of the synthetic products increased due to its production cost, time effectiveness, easy quality control, stringent regulation and quick effects, but their safety and efficacy was always remained questionable, resulting in the dependence on the natural products by more than 80% of the total population in the developing world, because of its time tested safety and efficacy. A enormous number of natural product-derived compounds in various stages of clinical development highlighted the existing activity and significance of the use of natural products as sources of new drug candidates.