Article 7 controlled study 6 nonhuman 6 human 5 unclassified drug 5 IC50 4 phytochemistry 4 plant extract 4 plant leaf 4 antibacterial activity 3 antiinflammatory activity 3 antineoplastic activity 3 bark 3 drug isolation 3 pharmacognosy 3 Acetylcholinesterase 2 Eurycoma longifolia 2 Eurycoma longifolia extract 2 MTT assay 2 PAIN 2 Pharmacognosy. Pharmaceutical substances (Plant, animal, and inorganic) 2 Review 2 acetylcholinesterase 2 antiinfective agent 2 antioxidant activity 2 betulic acid 2 biological activity 2 cell viability 2 cholinesterase inhibition 2 cholinesterase inhibitor 2