March 2024 PMID 38214279

Microdosing psychedelics and the risk of cardiac fibrosis and valvulopathy: Comparison to known cardiotoxins.

Antonin Rouaud, Abigail E Calder, Gregor Hasler

Download social card

Mentions

49
Peak: 24 in Jan 2024
across 5 sources since Jan 2024

Extended reach

147,359
potential audience

Total likes

400

Video views

6,638

Mentions per month

Jan 2024 – Aug 2025

Where it's discussed

  • X / Twitter33 posts
  • Reddit12 posts
  • YouTube2 videos
  • Instagram1 posts
  • News1 articles

AI synopsis

What people are saying

Discussions reflect a balanced interest and engagement with the research, with examples like mentions of structural drug similarities and long-term health risks, as well as calls for caution and further evaluation, shaped by a tone that combines scientific curiosity with health concerns.

AgreementModerate agreement

Most discussions acknowledge the potential risks highlighted in the publication, such as the structural similarities between psychedelics and known cardiotoxins, showing a moderate consensus in support.

InterestModerate interest

Posts demonstrate a moderate level of curiosity, with users referencing specific mechanisms like the 5-HT2B receptor and long-term health impacts, indicating engagement with the scientific content.

EngagementModerate engagement

Several comments discuss the implications of the research, referencing methods, potential risks, and safety concerns, reflecting a thoughtful and involved exam of the topic.

ImpactModerate impact

The discussions suggest a recognition of the study’s importance and potential influence on public health perceptions and future research directions.

Abstract in brief

  • Microdosing psychedelics like LSD and psilocybin involves taking small doses regularly over weeks or months, but their long-term impact on heart health is not well understood.
  • Since these drugs share structural similarities with known heart-toxic medications such as methysergide and fenfluramine, there is concern they could increase the risk of cardiac fibrosis and valvulopathy with long-term use.
  • The review emphasizes the importance of studying the role of the 5HT2B receptor in drug-induced heart damage and calls for careful evaluation of the safety of microdosing psychedelics in future research.]

Top posts

Most liked on X and Bluesky
BryanRoth
@zenbrainest · X

We discuss the relationship between drug-induced cardiac fibrosis and the 5-HT2B receptor, and we make recommendations for evaluating the safety of microdosing psychedelics in future studies. #psychedelics https://t.co/quqxq0WWf8

Jan 17, 2024 · 26 likes · 6 shares · 17,120 followers View post →
テ"力めの犬
@Lotus_Solus · X

やはりマイクロドージングは一部の心疾患に対する罹患リスクを高めるのではないか?続報が待たれる。 LSDとシロシビンは、メチルセルジド、ペルゴリド、フェンフルラミンなど、常用するとcardiac fibrosisや心臓弁膜症のリスクを高める薬物と構造的に類似。 https://t.co/QPdne2pRg4

Jan 26, 2024 · 19 likes · 1,846 followers View post →
Prakash Masand
@PMasand · X

Though microdosing psychedelics has become increasingly popular, its long-term effects may include #cardiac #fibrosis and valvular #heart disease.There is a lot of hype around psychedelics. User beware! https://t.co/u5c7pFcf9S #nursepractitioner #mentalhealth #psychiatry

Jan 30, 2024 · 8 likes · 2 shares · 474 followers View post →
josh hardman
@Josh__Hardman · X

"Concerningly, both LSD and psilocybin share structural similarities with medications which raise the risk of cardiac fibrosis and valvulopathy when taken regularly, including methysergide, pergolide, and fenfluramine." https://t.co/peJQerdedL

Jan 13, 2024 · 7 likes · 4 shares · 3,709 followers View post →
Grinspoon -- Grinspoon on Drugs
@Peter_Grinspoon · X

A good reminder that there's no free lunch with ANY medication! 'Microdosing psychedelics and the risk of cardiac fibrosis and valvulopathy: Comparison to known cardiotoxins' #psychedelics https://t.co/cAHvkdLyng

Jan 20, 2024 · 5 likes · 3 shares · 35,354 followers View post →
Blossom
@blossomact · X

This review assesses the potential long-term impact of microdosing psychedelics on cardiac health, particularly focusing on LSD and psilocybin. https://t.co/nw56foyNhS

Jan 19, 2024 · 4 likes · 1 share · 3,349 followers View post →

All mentions

Microdosing Psychedelics and Cardiac Health Risks

This episode explores how microdosing psychedelics supports mindfulness and emotional balance. It includes practical guidance on microdosing, spiritual dimensions of psychedelic work, and insights into fostering…

Get SetSet · Nov 30, 2024 59 views
np
@7witz37 · X

RT @Josh__Hardman: "Concerningly, both LSD and psilocybin share structural similarities with medications which raise the risk of cardiac fi…

Aug 10, 2025 · 4 shares · 389 followers View post →
Heart Matters
@HeartNewsOnline · X

Microdosing psychedelics and the risk of cardiac fibrosis and valvulopathy https://t.co/nzkZibdFf4

Mar 5, 2025 · 4,329 followers View post →
Dontfeedthef0x
@Dontfeedthef0x · X

@misty_turquoise https://t.co/bfW1A40ua5

Sep 15, 2024 · 2 likes · 178 followers View post →
Kelly A. Hogan Ph.D.
@Loose_Lab_Rat · X

Microdosing psychedelics and the risk of cardiac fibrosis and valvulopathy: Comparison to known cardiotoxins https://t.co/2ChV3PzRA3

Aug 5, 2024 · 2 likes · 2,240 followers View post →
M
@missylyn19 · X

@EmilioAndreazza @NTFabiano https://t.co/mNpKUdXUDn

Jul 5, 2024 · 495 followers View post →
Awaken The #METAD | r/microdosing | Mush Love
@LiveInMushLove · X

RT @Neurons2Nirvana: Abstract; Table; Figure; Conclusion | #Microdosing #psychedelics and the risk of #cardiac #fibrosis and #valvulopathy:…

Apr 27, 2024 · 1 share · 742 followers View post →
Awaken The #METAD | r/microdosing | Mush Love
@LiveInMushLove · X

Abstract; Table; Figure; Conclusion | #Microdosing #psychedelics and the risk of #cardiac #fibrosis and #valvulopathy: Comparison to known #cardiotoxins | Journal of #Psychopharmacology [Jan 2024]: https://t.co/iwiiAjlAm4 https://t.co/lHPbMUz3v7

Apr 16, 2024 · 1 share · 742 followers View post →
P
@psychopharmacol · X

Both LSD and psilocybin share structural similarities with medications which raise the risk of cardiac fibrosis and valvulopathy when taken regularly (methysergide, pergolide, fenfluramine, and 3,4-MDMA) https://t.co/6S9NFW4VgK https://t.co/VnWIltXgC2

Mar 19, 2024 · 3 likes · 570 followers View post →
Virophagy
@virophagy · X

@bioenergy_space I hope theres a workaround for this issue https://t.co/XEWPrhPnJH

Feb 2, 2024 · 3 likes · 633 followers View post →
A Punk Rock Future
@APunkRockFuture · X

RT @PMasand: Though microdosing psychedelics has become increasingly popular, its long-term effects may include #cardiac #fibrosis and valv…

Jan 30, 2024 · 2 shares · 1,333 followers View post →
Mario Perales
@Dr_MarioPerales · X

RT @PMasand: Though microdosing psychedelics has become increasingly popular, its long-term effects may include #cardiac #fibrosis and valv…

Jan 30, 2024 · 2 shares · 68 followers View post →
Prakash Masand
@PMasand · X

Though microdosing psychedelics has become increasingly popular, its long-term effects may include #cardiac #fibrosis and valvular #heart disease.There is a lot of hype around psychedelics. User beware! https://t.co/u5c7pFcf9S #nursepractitioner #mentalhealth #psychiatry

Jan 30, 2024 · 8 likes · 2 shares · 474 followers View post →
テ"力めの犬
@Lotus_Solus · X

やはりマイクロドージングは一部の心疾患に対する罹患リスクを高めるのではないか?続報が待たれる。 LSDとシロシビンは、メチルセルジド、ペルゴリド、フェンフルラミンなど、常用するとcardiac fibrosisや心臓弁膜症のリスクを高める薬物と構造的に類似。 https://t.co/QPdne2pRg4

Jan 26, 2024 · 19 likes · 1,846 followers View post →
Dr. Lelde Clemente
@leldepelde · X

Reference: Rouaud et al., “Microdosing psychedelics and the risk of cardiac fibrosis and valvulopathy: Comparison to known cardiotoxins”, Journal of Psychopharmacology, 2024 /end

Jan 22, 2024 · 1 like · 2,806 followers View post →
Jef Martens
@artens · X

RT @Peter_Grinspoon: A good reminder that there's no free lunch with ANY medication! 'Microdosing psychedelics and the risk of cardiac fibr…

Jan 22, 2024 · 3 shares · 464 followers View post →
Alexie Vallejo Silva
@AlexieVallejo · X

RT @psychopharmacol: Microdosing psychedelics (sub-threshold doses of LSD, psilocybin, or other 2–4 times a week) raise the risk of cardiac…

Jan 21, 2024 · 1 share · 291 followers View post →
Balázs Szigeti
@psybalazs · X

RT @Josh__Hardman: "Concerningly, both LSD and psilocybin share structural similarities with medications which raise the risk of cardiac fi…

Jan 21, 2024 · 4 shares · 3,287 followers View post →
Julien Dumesnil
@JuDuBZH · X

RT @Peter_Grinspoon: A good reminder that there's no free lunch with ANY medication! 'Microdosing psychedelics and the risk of cardiac fibr…

Jan 20, 2024 · 3 shares · 1,617 followers View post →
eksogen
@eksogenisk · X

RT @Peter_Grinspoon: A good reminder that there's no free lunch with ANY medication! 'Microdosing psychedelics and the risk of cardiac fibr…

Jan 20, 2024 · 3 shares · 1,950 followers View post →
Grinspoon -- Grinspoon on Drugs
@Peter_Grinspoon · X

A good reminder that there's no free lunch with ANY medication! 'Microdosing psychedelics and the risk of cardiac fibrosis and valvulopathy: Comparison to known cardiotoxins' #psychedelics https://t.co/cAHvkdLyng

Jan 20, 2024 · 5 likes · 3 shares · 35,354 followers View post →
P
@psychopharmacol · X

Microdosing psychedelics (sub-threshold doses of LSD, psilocybin, or other 2–4 times a week) raise the risk of cardiac fibrosis and valvulopathy when taken regularly. There is a relationship between cardiac fibrosis and the 5-HT2B receptor https://t.co/6S9NFW4VgK https://t.co/IoRxEJoQYb

Jan 19, 2024 · 1 share · 570 followers View post →
Blossom
@blossomact · X

This review assesses the potential long-term impact of microdosing psychedelics on cardiac health, particularly focusing on LSD and psilocybin. https://t.co/nw56foyNhS

Jan 19, 2024 · 4 likes · 1 share · 3,349 followers View post →
CopperKettle
@Artyom_Yekat · X

RT @zenbrainest: We discuss the relationship between drug-induced cardiac fibrosis and the 5-HT2B receptor, and we make recommendations for…

Jan 19, 2024 · 6 shares · 385 followers View post →
Jakub Schimmelpfennig
@psychedmt · X

RT @zenbrainest: We discuss the relationship between drug-induced cardiac fibrosis and the 5-HT2B receptor, and we make recommendations for…

Jan 18, 2024 · 6 shares · 409 followers View post →
Joshua Rosenblat, MD, MSc, FRCPC
@JD_Rosenblat · X

RT @zenbrainest: We discuss the relationship between drug-induced cardiac fibrosis and the 5-HT2B receptor, and we make recommendations for…

Jan 18, 2024 · 6 shares · 3,347 followers View post →
Jibran Khokhar
@DrJKhokhar · X

RT @zenbrainest: We discuss the relationship between drug-induced cardiac fibrosis and the 5-HT2B receptor, and we make recommendations for…

Jan 18, 2024 · 6 shares · 10,861 followers View post →
Dr. Rick Barnett, PsyD
@drrickbarnett · X

RT @zenbrainest: We discuss the relationship between drug-induced cardiac fibrosis and the 5-HT2B receptor, and we make recommendations for…

Jan 17, 2024 · 6 shares · 17,587 followers View post →
BryanRoth
@zenbrainest · X

RT @zenbrainest: We discuss the relationship between drug-induced cardiac fibrosis and the 5-HT2B receptor, and we make recommendations for…

Jan 17, 2024 · 6 shares · 17,120 followers View post →
BryanRoth
@zenbrainest · X

We discuss the relationship between drug-induced cardiac fibrosis and the 5-HT2B receptor, and we make recommendations for evaluating the safety of microdosing psychedelics in future studies. #psychedelics https://t.co/quqxq0WWf8

Jan 17, 2024 · 26 likes · 6 shares · 17,120 followers View post →
bernardo parrella
@berny · X

RT @Josh__Hardman: "Concerningly, both LSD and psilocybin share structural similarities with medications which raise the risk of cardiac fi…

Jan 14, 2024 · 4 shares · 750 followers View post →
Jason Luoma
@jasonluoma · X

RT @Josh__Hardman: "Concerningly, both LSD and psilocybin share structural similarities with medications which raise the risk of cardiac fi…

Jan 13, 2024 · 4 shares · 2,007 followers View post →
josh hardman
@Josh__Hardman · X

"Concerningly, both LSD and psilocybin share structural similarities with medications which raise the risk of cardiac fibrosis and valvulopathy when taken regularly, including methysergide, pergolide, and fenfluramine." https://t.co/peJQerdedL

Jan 13, 2024 · 7 likes · 4 shares · 3,709 followers View post →
THERADELICS
@theradelics · X

Microdosing psychedelics and the risk of cardiac fibrosis and valvulopathy: Comparison to known cardiotoxins https://t.co/LTQnQmDJR6 https://t.co/Liva5TX8qH

Jan 12, 2024 · 1 like · 3,390 followers View post →
Hou Book | PDF
News

2024, doi: 10.1177/02698811231225609. Houbook v1.4.0 45 [25] Z. Postránecká, C. Vejmola, a F. Tylš, „Psychedelic therapy in the Czech Republic: A ...

Dec 15, 2025 View →
help me with this study : r/microdosing
Reddit

https://journals.sagepub.com/doi/10.1177/02698811231225609. Can't find anything to disprove it, just not enough research in the area ...

Jun 19, 2025 View →
Psychedelics : r/valvereplacement
Reddit

... general on psychedelics and heart/valve health. https://journals.sagepub.com/doi/10.1177/02698811231225609 · leoleogeebank. OP • 6mo ago.

Jun 10, 2025 View →
Trying to replace Adderall with a supplement stack — what's worked ...
Reddit

https://journals.sagepub.com/doi/10.1177/02698811231225609. May not be the best / most rigorous research paper though. But it's a maybe and ...

May 11, 2025 View →
Psychodeliki, Indywidualizacja i Alchemia Dobrego Samopoczucia ...
Reddit

https://journals.sagepub.com/doi/10.1177/02698811231225609#:~:text=Concerningly%2C%20both%20LSD%20and%20psilocybin,methysergide%2C%20pergolide% ...

Apr 9, 2025 View →
Psychedelics, Individuation, and the Alchemy of Well-Being : r/Jung
Reddit

https://journals.sagepub.com/doi/10.1177/02698811231225609#:~:text=Concerningly%2C%20both%20LSD%20and%20psilocybin,methysergide%2C%20pergolide% ...

Apr 9, 2025 View →
"If you were designing the ultimate nootropics lineup for 2025, what ...
Reddit

... something with significant 5HT2B agonism https://journals.sagepub.com/doi/10.1177/02698811231225609 · Traditional_Gas8325. • 1y ago.

Dec 23, 2024 View →
Is there a law of diminishing return for taking shrooms and reaping ...
Reddit

... 10.1177/02698811231225609 and others. The risk is low and I'd expect very low doses a few days on and a few days off would limit it further ...

Oct 28, 2024 View →
Tired of SSRI's : r/COpsychonauts
Reddit

... microdose every day without breaks so I do see a risk there. https://journals.sagepub.com/doi/10.1177/02698811231225609 · Hourglass7200. • 2y ...

May 7, 2024 View →
What is the worst case scenario? : r/Psychedelics
Reddit

... .com/doi/full/10.1177/02698811231225609 · https://chacruna.net/why-chronic-microdosing-might-break-your-heart/ · Bad_Packet. • 2y ago.

May 4, 2024 View →
Side effect of mushrooms (heart health or subconscious thoughts ...
Reddit

https://journals.sagepub.com/doi/10.1177/02698811231225609. Highly likely that prolonged use of psychedelics like LSD or Psilocybin will ...

Apr 1, 2024 View →
What drugs are safe on Zoloft? : r/zoloft
Reddit

https://journals.sagepub.com/doi/10.1177/02698811231225609#:~:text=One%20recent%20review%20concluded%20that,et%20al.%2C%202023). More replies.

Mar 23, 2024 View →
Jakie narkotyki są bezpieczne podczas przyjmowania Zoloftu? : r/zoloft
Reddit

Czasami ryzyko jest warte nagrody, czasami nie. https://journals.sagepub.com/doi/10.1177/02698811231225609#:~:text=One%20recent%20review% ...

Mar 23, 2024 View →
Hjärtklaffsjukdomar och hjärtfibros av mikrodosering? Långvarig ...
Instagram

... av mikrodosering allvarligt när dess popularitet ökar. https://journals.sagepub.com/doi/10.1177/02698811231225609".

Feb 12, 2024 View →