Assistant Professor at the Department of Medical Technology, University of Santo Tomas.

Founding director of the Association for Harm Reduction Education and Research (AHRER)

Chief of the University Dental Services Department in Polytechnic University of the Philippines

Director, of ENDS Cigarette Smoking Thailand (ECST) / International Network of Nicotine Consumer Organizations (INNCO) Governing Board

Executive Coordinator of CAPHRA

Chairman of the House Committee on Dangerous Drugs / Vice-Chairman of the House Committee on Natural Resources.

Active member of the Association of Vapers India (AVI) / The board of the International Network of Nicotine Consumer Organizations.

Director of the Polytechnic University of the Philippines

President of Quit for Good

THR consumer advocacy

Adjunct Professor of Law at the University of Ottawa / Chair of the Advisory Board at the Center for Health, Law, Policy and Ethics

Director of Vapers India (AVI) / former President of the International Network of Nicotine Consumer Organisations (INNCO)

President of the Philippine E-Cigarettes Association / President and CEO of Green Puff Electronic Cigarettes Inc.

President of The Vapers Philippines

Faculty of Arts and Letters' Coordinator for International Relations and Programs, University of Santo Tomas