{"id":1561,"date":"2025-09-06T09:34:17","date_gmt":"2025-09-06T09:34:17","guid":{"rendered":"https:\/\/readtrends.com\/en\/single-lsd-dose-relieve-anxiety\/"},"modified":"2025-09-06T09:34:17","modified_gmt":"2025-09-06T09:34:17","slug":"single-lsd-dose-relieve-anxiety","status":"publish","type":"post","link":"https:\/\/readtrends.com\/en\/single-lsd-dose-relieve-anxiety\/","title":{"rendered":"Single LSD Dose May Relieve Anxiety for Months"},"content":{"rendered":"<article>\n<p>A randomized clinical trial published in JAMA on <time datetime=\"2025-09-04\">Sept. 4, 2025<\/time> found that a single high microgram dose of LSD reduced symptoms of generalized anxiety disorder in many participants for at least 12 weeks. The U.S.-based study enrolled 194 adults with moderate to severe anxiety and reported the strongest clinical benefit at the 100-microgram dose.<\/p>\n<h2>Key takeaways<\/h2>\n<ul>\n<li>The trial included 194 participants across the United States with moderate to severe generalized anxiety disorder.<\/li>\n<li>Only higher doses (100 or 200 micrograms) produced measurable benefit; 100 micrograms showed the best outcomes.<\/li>\n<li>At 12 weeks, about 47% of the 100\u2011microgram group met remission criteria; roughly 65% achieved a \u226550% symptom reduction.<\/li>\n<li>By comparison, about 20% of the placebo group were in remission at 12 weeks and ~30% had a \u226550% score drop.<\/li>\n<li>Baseline mean anxiety score was 30 on a 0\u201356 scale; remission was defined as \u22647. The 100\u2011microgram group averaged a 21\u2011point reduction.<\/li>\n<li>Common, expected acute effects included altered visual perception, nausea, headache and euphoric mood; hallucinations were reported by >90% of the 100\u2011microgram group and 100% of the 200\u2011microgram group.<\/li>\n<li>Follow-up was limited to three months, and 18% of participants were receiving external psychotherapy during the trial.<\/li>\n<\/ul>\n<h2>Verified facts<\/h2>\n<p>The multicenter, randomized trial compared placebo with four LSD dose levels (25, 50, 100 and 200 micrograms) in adults diagnosed with generalized anxiety disorder. Investigators measured symptoms using a standardized anxiety rating scale (0\u201356); an average baseline score was approximately 30, above the severe threshold of 24. The primary clinical signal appeared only at the two highest doses, with 100 micrograms producing the clearest benefit.<\/p>\n<figure>\n<table>\n<thead>\n<tr>\n<th>Dose<\/th>\n<th>Remission at 12 weeks<\/th>\n<th>\u226550% symptom reduction<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Placebo<\/td>\n<td>~20%<\/td>\n<td>~30%<\/td>\n<\/tr>\n<tr>\n<td>100 \u00b5g<\/td>\n<td>~47%<\/td>\n<td>~65%<\/td>\n<\/tr>\n<tr>\n<td>200 \u00b5g<\/td>\n<td>Noted improvement (higher adverse effects)<\/td>\n<td>Improvement observed<\/td>\n<\/tr>\n<\/tbody>\n<\/table><figcaption>Summary of reported group outcomes at 12 weeks (trial report)<\/figcaption><\/figure>\n<p>The study recorded acute, expected psychedelic effects during the dosing sessions. Side effects were mostly transient and resolved after the session, but they were frequent enough that a minority of participants discontinued the trial. Two people reported feeling intoxicated during dosing (one in the 50\u2011\u00b5g group and one in the 100\u2011\u00b5g group) but were back to normal after the session.<\/p>\n<h2>Context &#038; impact<\/h2>\n<p>Psychedelic compounds like LSD are proposed to transiently increase neural connectivity and plasticity, potentially disrupting entrenched anxiety-related thought patterns. Previous trials often combined psychedelics with psychotherapy, making it difficult to isolate the drug&#8217;s standalone effect. This trial deliberately enrolled many participants not undergoing formal psychotherapy to help clarify LSD&#8217;s independent contribution.<\/p>\n<p>The results are notable because standard first-line anxiety treatments\u2014SSRIs and benzodiazepines\u2014leave an estimated half of patients without adequate relief. A single-dose intervention that yields durable improvement over months, if replicated, could change treatment options and regulatory considerations for psychedelic-assisted care.<\/p>\n<h3>Limitations<\/h3>\n<ul>\n<li>Follow-up was limited to 12 weeks; durability beyond that is unknown.<\/li>\n<li>About 18% of participants continued external psychotherapy, complicating attribution of effects solely to the drug.<\/li>\n<li>High-dose groups reported frequent intense perceptual effects, which may limit tolerability for some patients.<\/li>\n<\/ul>\n<blockquote>\n<p>&#8220;This study contributes valuable, controlled evidence to the emerging field of psychedelic therapeutics and suggests that LSD alone may have sustained anti-anxiety effects,&#8221;<\/p>\n<p><cite>Dr. Claudio Soares, Queen&#8217;s University School of Medicine (commentary)<\/cite><\/p><\/blockquote>\n<aside>\n<details>\n<summary>What does a microgram (\u00b5g) dose mean here?<\/summary>\n<p>Microgram dosing for LSD reflects the tiny quantities required for psychoactive effect: 25 and 50 \u00b5g are low doses, while 100\u2013200 \u00b5g are typical full, perceptually active doses used in many clinical and research settings.<\/p>\n<\/details>\n<\/aside>\n<h2>Unconfirmed items<\/h2>\n<ul>\n<li>Whether clinical benefits persist beyond 12 weeks after a single dose remains untested in this trial.<\/li>\n<li>The precise neurobiological mechanism linking LSD exposure to sustained anxiety relief is still hypothetical and under study.<\/li>\n<li>How outcomes compare across different patient subgroups or with adjunctive psychotherapy requires further trials.<\/li>\n<\/ul>\n<h2>Bottom line<\/h2>\n<p>This randomized study of 194 adults found that a single 100\u2011microgram dose of LSD produced clinically meaningful reductions in generalized anxiety symptoms that lasted at least three months for many participants. The result is promising but preliminary: larger, longer trials are needed to confirm durability, optimize dosing and assess long-term safety and tolerability.<\/p>\n<h2>Sources<\/h2>\n<ul>\n<li><a href=\"https:\/\/jamanetwork.com\/\" target=\"_blank\" rel=\"noopener\">JAMA (trial publication)<\/a><\/li>\n<li><a href=\"https:\/\/www.livescience.com\/\" target=\"_blank\" rel=\"noopener\">Live Science (report)<\/a><\/li>\n<\/ul>\n<\/article>\n","protected":false},"excerpt":{"rendered":"<p>A randomized clinical trial published in JAMA on Sept. 4, 2025 found that a single high microgram dose of LSD reduced symptoms of generalized anxiety disorder in many participants for at least 12 weeks. The U.S.-based study enrolled 194 adults with moderate to severe anxiety and reported the strongest clinical benefit at the 100-microgram dose. &#8230; <a title=\"Single LSD Dose May Relieve Anxiety for Months\" class=\"read-more\" href=\"https:\/\/readtrends.com\/en\/single-lsd-dose-relieve-anxiety\/\" aria-label=\"Read more about Single LSD Dose May Relieve Anxiety for Months\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":1555,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"rank_math_title":"Single LSD Dose May Relieve Anxiety for Months | Live Science","rank_math_description":"A randomized trial of 194 U.S. adults found a single 100\u2011microgram LSD dose reduced generalized anxiety symptoms for at least 12 weeks, with nearly half in remission.","rank_math_focus_keyword":"LSD, generalized anxiety, clinical trial, micrograms, remission","footnotes":""},"categories":[2],"tags":[],"class_list":["post-1561","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-top-stories"],"_links":{"self":[{"href":"https:\/\/readtrends.com\/en\/wp-json\/wp\/v2\/posts\/1561","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/readtrends.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/readtrends.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/readtrends.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/readtrends.com\/en\/wp-json\/wp\/v2\/comments?post=1561"}],"version-history":[{"count":0,"href":"https:\/\/readtrends.com\/en\/wp-json\/wp\/v2\/posts\/1561\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/readtrends.com\/en\/wp-json\/wp\/v2\/media\/1555"}],"wp:attachment":[{"href":"https:\/\/readtrends.com\/en\/wp-json\/wp\/v2\/media?parent=1561"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/readtrends.com\/en\/wp-json\/wp\/v2\/categories?post=1561"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/readtrends.com\/en\/wp-json\/wp\/v2\/tags?post=1561"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}