Zamri obtained his BSc in Chemistry and MSc in pharmacology from the University of Malaya and later PhD in Clinical Pharmacology from the University of London (UK) in 2007. Soon after completed his doctorate degree, he joined the Department of pharmacology, University of Malaya as a senior lecturer and currently serves as a Professor and head of Pharmacology Department and also Head of University of Malaya Bioequivalence Testing Centre (UBAT). His scope of research includes bioavailability and pharmacokinetic studies in human and animal models, drug delivery systems such as PEG-PLGA nanoparticles for systemic drug delivery, and semi solid formulations for transdermal and topical preparation.  Apart from human clinical trials and preclinical studies in animals, his research also covers the screening and testing of natural product compounds derive from selected local plants. His laboratory also provides services and research in food contaminations, adulterated pharmaceutical products, xenobiotic studies on certain chemicals such as endocrine disruptors in food products, human bodies, etc. using GCMS, HPLC, LCMSMS, etc. Apart from his research activities, he also actively provided consultation to local pharmaceutical companies to conduct testing on pharmaceutical formulations especially for bioequivalence studies, comparative dissolution, etc. His bioequivalence laboratory has conducted more than 40 bioequivalence studies for generic drug formulations and also conducted drug analysis in biological and pharmaceutical formulations.