leafie @teamleafie.bsky.social Cannabis, psychedelics and culture for the curious.
Issue 2 of our print magazine is out now: www.leafie.co.uk
Moms Stop The Harm @momsstoptheharm.bsky.social Moms Stop the Harm (MSTH) is a network of Canadian families impacted by substance-use-related harms and deaths.
We advocate for the change of failed drug policies, provide peer support to families who have lost a loved one or use or have used substances.
Rafaela Rigoni @rqrigoni.bsky.social Researcher, harm reduction advocate, and nature lover | Head of Research at Correlation-European Harm Reduction Network.
PHS Community Services Society @phscss.bsky.social Housing, harm reduction and healthcare in Vancouver & Victoria, BC
AIVL For PWUD Wellbeing, Health & Human Rights✊️💜 @aivl.bsky.social The PWUD Community-Controlled Peak Organisation that represents our network of Australian peer-based harm reduction & peer-led Drug User Organisations (DUOs) and supporting Asia-Pacific programs. #PeerPower
www.aivl.org.au
International Drug Policy Consortium (IDPC) @idpc.net The global network promoting drug policies grounded in social justice and human rights
Dr Hannah Farrimond @hannahfarrimond.bsky.social Stigma and stigma theory; drugs and pharmaceutical cultures; addiction; tobacco, vaping, alcohol, cannabis, psychedelics; sociology of health/biomed; social impacts of brain injury; Associate Professor,
University of Exeter, UK
Mattha Busby @matthabusby.bsky.social Drugs, power, culture and health
@guardian @wired @rollingstone @vice @playboy @gq @menshealthmag @atmos
matthabusby.net Signal: matthabusby.93
@drwillpearson.bsky.social @drwillpearson.bsky.social Asst Addictions Lead for The Salvation Army. Also GP working in homelessness. In awe of my primary care colleagues! Personal views. #harmreduction #inclusionheath #homelessness
Jess Staufenberg @jessstaufenberg.bsky.social Journalist on corruption, climate, state of democracy @source-material.org. Former @schoolsweek.bsky.social @feweek.bsky.social, cofounder @pepforum.bsky.social. jess@source-material.org for stories or jhstaufenberg@gmail.com
Hannah Sinclair @hannahsinclairsdf.bsky.social Peer Research Development Officer @scottishdrugsforum.bsky.social. Views are my own.
Ana-Maria Bliuc @anamariab99.bsky.social Social & political psychologist at the University of Dundee in Scotland. Interested in the study of polarisation and online communities in political and health domains (including addiction recovery). 🇹🇩🇦🇺🏴
Jessica Spratt @jessicaspratt.bsky.social PhD in drug use among LGBTQ+ communities in Northern Ireland. Ulster University - ESRC NINE DTP.
Interests: drug use practices and cultures, drug policy, harm reduction.
Christine McNab @christinemcnab.bsky.social Global health, pandemic preparedness, justice, human rights, Canadian, writer, photographer. Kindness is a virtue. Might is not right. 
LEAP @policeforreform.bsky.social We are Law Enforcement Action Partnership - LEAP. Working alongside communities for social justice solutions.
Angela Walker @angelawalkernews.bsky.social Video journalist, podcaster & former BBC reporter. Shining a light on under-reported issues. Let me tell your story. http://angelawalkerreports.com
Anyone's Child: Families For Safer Drug Control @anyoneschild.bsky.social Anyone's Child is an international network of families who know that we can better protect our children when drugs are regulated. A campaign by @transformdrugs.bsky.social
Will Reid @willreid.bsky.social Personal account. Was @WillReidWeb on Twitter/X.
Crew: mind altering @crew2000.bsky.social Edinburgh, Scotland | Charity est 1992 (SC021500) | Reduces harm and stigma associated with drugs (including alcohol)| Neither condemn/condone; we give info, advice, support to reduce risks and harms.
David Simon @audacityofdespair.bsky.social Dramatist, author, apostate newspaperman specializing in artisanal contempt and discerning maledicta. The claim that I am the angriest man in television is faint praise indeed; the second angriest is yelling at an agent because residual checks are late.
Graham Parsons FRPharmS @grahamparsons.bsky.social Proud Pharmacist and Director of Pharmacy and Medicines Optimisation at Waythrough.
Posts are my own and not reflective of my current or past employers.
PUSB
@profdavidnutt.bsky.social @profdavidnutt.bsky.social 
Prof Sarah-Jayne Blakemore @sjblakemore.bsky.social Professor of Psychology & Cognitive Neuroscience at Cambridge, FBA FMedSci FRS. Adolescent brain development. Views my own. Book: http://amazon.co.uk/dp/1784161349
Drug Science @drugscience.bsky.social Drug Science is the UK's leading independent scientific body on drugs - guiding evidence-based drug policy and drug research. Please donate to support our work.
www.drugscience.org.uk
Mat Southwell @matsouthwell.bsky.social Technical advisor, drug user advocate and human rights activist working on harm reduction, drug treatment and community mobilisation with people who use drugs.
Transform Drug Policy Foundation @transformdrugs.bsky.social Transform is an independent NGO, and UK registered charity, working nationally and internationally towards more just and effective drugs policies, including a safer system of legal regulation for all drugs.
https://transformdrugs.org/
Julian Buchanan, PhD @julianbuchanan.bsky.social Pioneered risk/harm reduction in Liverpool in 1980s. Ex Drug Worker & Criminology Professor.
Speaker, Blogger, Writer, Activist for drug reform.
Founding member of Harm Reduction Coalition Aotearoa.
Pākehā/Scouser
https://julianbuchanan.wordpress.com/
The Drugs Wheel @thedrugswheel.bsky.social The Drugs Wheel by Mark Adley, Guy Jones & Michael Linnell is an educational and harm reduction tool, licensed under Creative Commons, currently 19 international versions www.thedrugswheel.com
@markadley.bsky.social
Carrie Lou Hamilton @carrielouhamilton.bsky.social Author - Editor - Translator (Sp-En)
On-and-off academic
#drugpolicy #feminism #harmreduction #veganism
💚 Hackney Greens / Green Drug Policy 💚
Newsletter on #Activism and #Writing
https://peninfist.substack.com
https://linktr.ee/clouhamilton
Amy O'Donnell @profamyodonnell.bsky.social Professor of Applied Health & Social Care Research | Population Health Sciences Institute, Newcastle University, UK | Research interests: Substance use; Mental Health; MLTC; Complex Needs | Mother of 2 giant adults (1 w/AuHD + anxiety) & 3 smaller cats.
Chyrell Bellamy @drchybellamy.bsky.social healing/living with MH/SUD! Lived Experience! Peer Support! Health For All! Community Led Research! CBPR/ Recovery and Harm Reduction. Alum Rutgers & UMICH & Yale/ Professor Yale Psychiatry; YCCI associate director
Anne-Marie Cockburn @anne-mariecockburn.bsky.social Mum of Martha Fernback (15) who died in 2013 of ecstasy O/D | Speaker, Author, Campaigner (drug policy/harm reduction @anyoneschild & restorative justice @TheForgivenessProject) | Wild swimmer, cyclist. Oxford, U.K.
https://substack.com/@annemariecockburn
Dana Larsen @danalarsen.bsky.social Founder of The Medicinal Mushroom Dispensary & Get Your Drugs Tested (world's busiest free drug analysis service.) I gave away 10 million cannabis seeds.
danalarsen.com
mushroomdispensary.com
getyourdrugstested.com
potheadbooks.com
youtube.com/@dankarson
D.M.Trott [Author: The Drug Users Bible] @dmtrott.bsky.social This is the official BlueSky account of DM Trott, the author of The Drug Users Bible. Ignorance kills education saves lives.
Information: www.DrugUsersBible.com
Veterans Action Council @vetsactioncouncil.bsky.social Conceptually different, volunteers, equals. VAC advocates for veterans' cannabis access and a voice in ongoing policy discussions, focusing on realistic, incremental progress across state, federal, and international levels
www.VeteransActionCouncil.com
Teresa Winstead @drteresa-winst.bsky.social Applied anthropologist, Sr Res Scientist & Affil Assoc Prof ~ PNW Med Sch. Focused on healthcare as human rt & harm reduction ❤️🔥 & indigenous sovereignty (& ❤️ dogs & dessert, but not dogs 4 dessert). Opinions mine, of course.
The Center for Drug Use and HIV Research (CDUHR) @cduhr.bsky.social The Center for Drug Use & HIV Research is dedicated to increasing the understanding of the drug use-HIV epidemic, particularly among high-risk people -NIDA P30DA011041.
Drug and Alcohol Dependence Reports @drugalcreports.bsky.social Welcome to DAD Reports, a companion journal to Drug and Alcohol Dependence. An alternative home for sound addiction science. Publisher Elsevier and EIC @terifranklin.bsky.social. https://linktr.ee/drugalcreports
Quinn Leffingwell, MPH @quinnleffingwell.bsky.social Tulsa, OK. Interested in substance use, maternal and child health, and harm reduction. He/him. Chelsea FC and OKC Thunder.
Christine Nayler 🇨🇦 @chrisnayler.bsky.social Trauma‑informed journalist, documentary storyteller,writer, artist & advocate. Writing and witnessing from systems of failure, grief & lived experience. #mentalhealth #neurodiversity #4Ryan https://substack.com/@christinenayler nationalapology.ca
@katieellen.bsky.social @katieellen.bsky.social Neurodivergent white settler living in Mi'kma'ki. IDU, harm reduction proponent seeking drug policy reform. Researcher, consultant and advocate. BOD of Moms Stop The Harm.
Workers for Ethical Substance Use Policy @wesup.bsky.social No Drug War On The Shop Floor
wesup.org
xʷməθkʷəýəm, Skwxwú7mesh & Səlilwətaɬ territories.
Kelly Knight @kellyrayknight.bsky.social Medical Anthropologist @ University of California - San Francisco
Associate Director, Benioff Housing and Homelessness Initiative
Opioid Industry Document Archive
addicted.pregnant.poor
Any Positive Change CA SSP @anypositivechange.bsky.social We are a non-profit California Authorized Syringe Service Program.
Radical love and empowerment for People Who Use Drugs. Come visit us on Facebook also at https://www.facebook.com/AnyPositiveChangeLakeCo?mibextid=ZbWKwL
Kathleen Cochran @momsforallpaths.bsky.social We are moms who love our children who use drugs problematically- #HarmReduction- #healthbaseddrugpolicies- #endoverdose- #endprohibition
StoptheDrugWar.org @stopthedrugwar.org 
Baltimore Harm Reduction Coalition @bmorehrc.bsky.social BHRC mobilizes community members for the health, dignity, and safety of people targeted by the racist war on drugs and anti-sex worker policies.
linktr.ee/bmorehrc
Dr David Luke @drdluke.bsky.social Professor of Exceptional Experience, researcher, writer, wronger, psychedelic Indiana Jones..
Graham St John @gmantic.bsky.social Cultural anthropologist, historian, vibeologist, gnomicologist, research fellow, and author. New book: Strange Attractor: The Hallucinatory Life of Terence McKenna (MIT Press, Oct 7, 2025)
Psychedelic Press @psypre.bsky.social Publisher of psychedelic writing and other literary treats since 2008 | Substack: http://tinyurl.com/hh4z8x26 Books: psychedelicpress.co.uk
Neşe Devenot, PhD @neselsd.bsky.social Rhymes w/ paper mâché 🍉
Psychedelic humanities: literature, ethics, harm reduction 🍄
Senior Lecturer at Johns Hopkins University 🌐
University Writing Program 📝
Indigenous/Kurdish 🟥☀🟩 ND (they/them)
chemicalpoetics.substack.com
Keelin O'Reilly @keelinoreilly.bsky.social 🔍 Researcher - Drug Policy Modelling Program
📄 Drug laws, decrim, treatment planning, harm reduction
📍 Sydney, Aus
Tim Surmont @timsurmont.bsky.social Drug scientist from Lisbon. Originally from Ghent (negenduusd), but probably drifted away forever.
Drugs - Science - Sports - Politics
Jason Reed @jasontron.bsky.social 
Jude Duncan @heyjudey.bsky.social Lifelong Harm Reductionist . Works in Leicester city for Turning point , frontline worker , trainer , lover of all things to reduce harm . All posts my own thoughts and views . Lover of music and all sorts as well .
Drug Nerd @drugnerd.bsky.social Psychonaut love learning about and trying leagal psychoactive matter. Health and fitness enthusiast focused on longevity through a vegan lifestyle, smart supplementation, and consistent workouts. Into biohacking and optimizing cognition with nootropics.
Raimondo Bruno @psychopharmres.bsky.social Well defined ambiguity.
Psychopharmacology researcher (well, substance use, really). Stats geek. Views my own.
William Garriott @profwillgarriott.bsky.social Professor. Anthropology. Law & Society. Criminology. Writing, reading, and teaching about drug policy and justice reform. Author of Policing Methamphetamine. New book on cannabis legalization coming soon.
Lindsey Hines @lindseyahines.bsky.social Psychology Lecturer at University of Bath, researching cannabis use, adolescent drug use and mental health through epidemiology | psychology | data analysis.
easily enthused. low-key dyspraxic.
she/her
Suzi Gage @soozaphone.bsky.social Mental health and substance use researcher. Author, podcaster and blogger #SayWhyToDrugs
Aysel Sultan @drayselsultan.bsky.social STS, drug policy, harm reduction, digital health interventions |
Lecturer @Technical University of Munich |
Editor of @dhspolicy.bsky.social |
Associate Editor @Harm Reduction Journal
The Anti-Stigma Network @anti-stigmanetwork.bsky.social The Anti-Stigma Network aims to improve the understanding of stigma and discrimination experienced by people affected by drug and alcohol use
Andy Perkins @andyperkins.bsky.social Director of a thriving social research company specialising in alcohol and other drug use research, evaluation and consultancy - across the UK and Europe. Proud Dad, keen golfer and massive Leicester City fan.
Kirsten Trayner @kirstentrayner.bsky.social Research Fellow/Epidemiologist @ Glasgow Caledonian University/Public Health Scotland. Harm reduction & drug-related harms. Views my own.
Magdalena Harris @pwud-pride.bsky.social Harm reduction & home baking
Prof of Inclusion Health Sociology, LSHTM
Current projects:
https://www.lshtm.ac.uk/research/centres-projects-groups/ihost
https://www.lshtm.ac.uk/research/centres-projects-groups/sipp
History: http://youtu.be/0H51Nk-I7PA
Claire Longmuir @clairelongmuir0.bsky.social Head of Policy and Practice - Harm Reduction, Simon Community Scotland
Believe in social change for the better.
Interested in drug policy, harm reduction, people and community.
@torstenkolind.bsky.social @torstenkolind.bsky.social Professor at Centre for Alcohol and Drug Research, Aarhus University, Denmark
Rebecca Foster @drrebeccafoster.bsky.social Lecturer in Criminology at Edinburgh Napier University. Interests include punishment, substance use and homelessness.
Josh Torrance @joshtorrance.bsky.social Finishing a PhD in policing drugs. Harm reduction, welfare, drug markets, drug diversion.
Martin Blakebrough @mblakebrough68.bsky.social CEO of Kaleidoscope which provides drug and alcohol services in Wales. A trustee of BCT and a keen runner 
Catriona Matheson @catrionamath.bsky.social All about evidence to reduce drug harms. Freelance research consultant and Prof in Substance Use, University of Stirling. FRPharmS.
Karen Duke @karenduke.bsky.social Professor in Criminology at Middlesex University, UK; Co-Director Drug & Alcohol Research Centre @darc-mdx.bsky.social; Co-Editor-in-Chief @deppjournal.bsky.social; Trustee at Revolving Doors @revdoors.bsky.social
Judith Aldridge @judithaldridge.bsky.social Drug use, drug markets, drug policy. Internet-facilitated drug supply. Criminology @University of Manchester
Will Haydock @williamhaydock.bsky.social Executive Director at Collective Voice, which represents charities that provide treatment for people with issues with alcohol or other drugs. Previously in local and national government, and before that doing academic research.
Peder Clark @pederclark.bsky.social history keeps me awake at night
Drugs: education, prevention and policy @deppjournal.bsky.social We publish peer reviewed, multi-disciplinary research papers, reviews & commentaries on policy, treatment, prevention & harm reduction issues regarding the use of alcohol, tobacco & other drugs. https://www.tandfonline.com/journals/idep20 
Toby Seddon @tobyseddon.bsky.social Professor of Social Science at University College London | UCL Social Research Institute | Chair of Release | Fellow of Academy of Social Sciences | Interested in: drug policy, social science, critical theory, history, law and society | www.tobyseddon.com
Beau Kilmer @beaukilmer.bsky.social Codirect @RANDCorporation Drug Policy Research Center w/ Rosanna Smart. RT≠endorsement; views mine
Gillian Shorter PhD @gwshorter.bsky.social Reader in Psychology @QUBelfast
President @kettilbruunsociety.bsky.social
Alcohol/other drugs, #HarmReduction, drug consumption rooms, OPCs, SCS #AddictionSci
Loves: dogs, dance, run, sea, joy
Views own (she/her) bi #BeMoreLyra
In my own time and space
Gillian Kolla @gilliankolla.bsky.social Assistant Professor, Memorial University & Collaborating Scientist, Canadian Institute on Substance Use Research, University of Victoria. Researching drug policy, harm reduction, social determinants of health
Shaleen Title @shaleen.bsky.social Lawyer, activist, former marijuana regulator. TOOL fan. Adjunct law professor. Openly skeptical of AI.
📍 Greater Boston
Erika Dyck @erikadyck.bsky.social Historian of health & social justice. Mostly psychedelics, madness, eugenics and birth control; essentially I enjoy studying who gets to make the rules and why we let them.
James Nicholls @jamesnicholls.bsky.social Alcohol and drug policy researcher: regulation, harm reduction, culture and politics. Might post about music and other things too…
Pissed off @janephillips.bsky.social I'm a woman from China currently living in the United States. No spam or promotional messages🚫 Cryptocurrency🚫 Pornographic content🚫
Mike Jay @mikejay.bsky.social http://mikejay.net
Prof Harry Sumnall @profhrs.bsky.social Prof of Substance Use at the School of Psychology, and Public Health Institute, LJMU (UK) - Drug research, policy, and culture. Member of ACMD. Advisor to Anti Stigma Network, ISSUP https://profiles.ljmu.ac.uk/1416-harry-sumnall
SteveRolles @steverolles.bsky.social Senior Policy Analyst for Transform Drug Policy Foundation
www.transformdrugs.org mostly tweeting on drug policy/law reform. Own views etc. Also/formerly @stevetransform on *the other place*
Jo Neill @profjoneill.bsky.social Prof of Psychopharmacology. Chair of DrugScience Psychedelics Working Group. Drug law reform & Psychedelic medicine.
Deb Hussey @hussey-deb.bsky.social Harm Reductionist. Works at Exchange Supplies. Massive fan of Naloxone. Volunteer with the Loop. Posts about Harm Reduction & not much else.Views my own, unless I stole them from someone funnier than me. She/Her
@judithyates.bsky.social @judithyates.bsky.social Retired UK GP and drug policy warrior.
@Hopehumphreys @hopehumphreys.bsky.social Granny, campaigning for drug law reform for over 25 years. Want the prison population greatly reduced. Hate Brexit 
Monica Barratt @monicabarratt.bsky.social Drugs, harm reduction, humane drug policies, drug checking, drug markets, social equity. Academic + advocate. Curtin, Loop, Bluelight.
Diane Goldstein @dianemgoldstein.bsky.social Ret. Peace Officer, 🏀⚽️ Fanatic, Abuelita, Potty Mouth, Fur Kids Fan, Tweets r Mine & not an opinion of LEAP
Health Poverty Action @healthpoverty.bsky.social We see health differently. We do what’s needed, not what’s easiest, to stop health being denied.
https://www.healthpovertyaction.org/
Drug Policy Facts @drugpolicyfacts.bsky.social Drug Policy Facts is a project of the Real Reporting Foundation. We provide excerpts of current information and statistics with complete citations and links to the source materials.
https://www.drugpolicyfacts.org/
Max Daly @maxdaly.bsky.social Drugs and organised crime journalist. Orwell Prize winner. Author, Narcomania. Former Global Drugs Editor, Vice. maxdaly.com
Ray @warzoid.bsky.social Producer of notorious & occasionally award-winning TV. Comms. Media. 20yrs no-fly. Dark green/left. Arts. Precautionary principle. Existential harm reduction.
Also sells eco-socialist/anti-fascist/anti-technofeudalist t-shirts @ www.revolutionarysell.com
Drug Policy Alliance @drugpolicy.org The nation’s leading org promoting drug policies grounded in evidence, health, equity, & human rights. #NoMoreDrugWar. ED: @kassandrafred.bsky.social https://drugpolicy.org/