Gupta was Emeritus Research Professor and Director of the Center for Research on Panamanian Flora, College of Pharmacy, University of Panama, Panama, Executive Director of the Interciencia Association and served as Director of the Health Area Ibero-American Programme for Science, Technology and Development (CYTED). His prizes include Alexander von Humboldt Fellowship, AAAS International Science Cooperation Award, Interciencia Award for Health Sciences, and National Research Excellence Award, Panama. Member of the Royal Academy of Pharmacy of Spain, Iberoamerican Academy of Pharmacy, Latin American Academy of Science, and distinguished scientist of the National Secretariat for Science, Technology and Innovation Panama. He holds honorary doctorate degrees from two universities. He has been the consultant to WHO, UNIDO, and ICS Medicinal and Aromatic Plants. He served on ICSU Regional Committee for Latin America and the Caribbean. Author of approx.300 peer-reviewed publications and 5 books.