About us

The International Network on Health and Hepatitis in Substance Users (INHSU) is a global membership organisation dedicated to improving the health of people who use drugs, with a specific focus on hepatitis C, infectious diseases, and harms that can occur from drug use.

We believe the most powerful impact is achieved when researchers, clinicians, advocates, and communities of people who use drugs come together to share knowledge, learn from each other, and put those insights into action.

Our work spans three key areas; knowledge exchange, education and advocacy. Through all three, we are committed to the human rights of people who use drugs and their contribution is central to our work.

Our membership


In our 2021/2022 financial year, our network included 21% researchers, 24% practitioners, 12% community members, 12% nurses, 4% students, and 27% others (such as program managers and policymakers). 

302 members

From 29 countries


INHSU Prisons members

As well as our members, we work closely with partner organisations globally to help ensure maximum impact for our projects. 


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Join the INHSU network

Through membership, you can meet, learn from, and collaborate with peers globally. You can help shape policies and recommendations. You can access member-only content and research. But perhaps most importantly, you can support INHSU to continue to advocate for people who use drugs, and fund evidence-based projects that improve their health and wellbeing globally.

To make our network more inclusive – particularly for community-based members, people from low and middle-income countries, students, nurses, allied health professionals, and trainees – we have recently created a new membership fee structure.


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Our vision

Our vision is a world where people who use drugs have equitable access to the evidence-based services, treatment, and support needed to improve health and live well.

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What we do

Our work focuses on three key areas; global knowledge exchange, education, and advocacy. Each of these efforts is powered by our diverse global network of experts, community members, researchers, policymakers, and activists.

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Our history

INHSU was established in 2009 in Switzerland, with the first INHSU conference held in Zürich. In the last decade, we have grown to over 900 members in over 50 countries.

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INHSU is expanding at a critical point in history for the health and wellbeing of people who use drugs, particularly when it comes to responding to hepatitis C. As an INHSU member, you will play a vital role in this response.

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