Simultaneous estimation of xanthine alkaloids (Theophylline, Theobromine and Caffeine) by High-Performance Liquid Chromatography Journal title: International Journal of Drug Regulatory Affairs Authors: Shruti Mourya, Ramesh Bodla, Ravikant Taurean, Akanksha Sharma Subject(s): Medicine, Internal Medicine, Pharmacology, Pharmacy, Toxicology, Health and Wellness