+ wishlist Natural Drug Discovery: Pharmacognosy and Phytochemistry for Bioactive Therapeutic Compounds (De Gruyter STEM) [9783111631417] Pre-Order Now Author: Jyoti Monga Smita Narwal Deepika Choudhary Prerna Sharma Natural Drug Discovery: Pharmacognosy and Phytochemistry for Bioactive Therapeutic Compounds (De Gruyter STEM) [9783111631417] Buy More - Save More. Below are the available bulk discount rates for each individual item when you purchase a certain amount Quantity Price Savings 25 - 99 21% 100 - 249 24% 250 - 499 25% 500 - 999 28% 1000+ 30% List Price As Low as $87.99 Format: Paperback