{"id":5219,"date":"2026-03-19T11:56:52","date_gmt":"2026-03-19T14:56:52","guid":{"rendered":"https:\/\/freemind.com.br\/blog\/?p=5219"},"modified":"2026-03-19T12:53:31","modified_gmt":"2026-03-19T15:53:31","slug":"cannabis-medicinal-riscos-evidencias-laranjeira","status":"publish","type":"post","link":"https:\/\/freemind.com.br\/blog\/cannabis-medicinal-riscos-evidencias-laranjeira\/","title":{"rendered":"Cannabis medicinal: riscos ignorados"},"content":{"rendered":"<p><span style=\"color: #008000;\"><em><strong>Cannabis medicinal: riscos, evid\u00eancias e o alerta de Ronaldo Laranjeira<\/strong><\/em><\/span><\/p>\n<p><a href=\"https:\/\/freemind.com.br\/blog\/ciencia-estrategia-e-pratica\/\" target=\"_blank\" rel=\"noopener\">Ci\u00eancia, preven\u00e7\u00e3o<\/a> e responsabilidade n\u00e3o podem caminhar separadas \u2014 especialmente quando o tema envolve sa\u00fade p\u00fablica.<\/p>\n<p>Ao longo de mais de uma d\u00e9cada, o Freemind tem constru\u00eddo pontes entre conhecimento cient\u00edfico, pol\u00edticas p\u00fablicas e cuidado humano. Um dos grandes nomes que acompanham essa trajet\u00f3ria desde as primeiras edi\u00e7\u00f5es do <a href=\"https:\/\/www.congressofreemind.com.br\/\" target=\"_blank\" rel=\"noopener\">Congresso Internacional Freemind<\/a> \u00e9 o psiquiatra <a href=\"https:\/\/freemind.com.br\/blog\/dr-ronaldo-laranjeira-40-anos-fazendo-a-diferenca\/\" target=\"_blank\" rel=\"noopener\"><strong>Dr. Ronaldo Laranjeira<\/strong><\/a>, refer\u00eancia nacional em depend\u00eancia qu\u00edmica, professor da Unifesp e uma voz firme na defesa de decis\u00f5es baseadas em evid\u00eancias.<\/p>\n<p>Em <a href=\"https:\/\/bit.ly\/4rJaJih\" target=\"_blank\" rel=\"noopener\">recente artigo<\/a> publicado na <a href=\"https:\/\/www.folha.uol.com.br\/\" target=\"_blank\" rel=\"noopener\"><em>Folha de S.Paulo<\/em><\/a>, o especialista faz um alerta contundente: o avan\u00e7o da chamada cannabis medicinal no Brasil pode estar sendo guiado mais por narrativas do que por ci\u00eancia, questionando tanto a fragilidade das evid\u00eancias cl\u00ednicas quanto os impactos sociais de sua amplia\u00e7\u00e3o no Brasil.<\/p>\n<h2><strong>Pouca evid\u00eancia, muitos riscos<\/strong><\/h2>\n<p>Segundo o Dr. Laranjeira, <strong>o entusiasmo em torno da cannabis para fins terap\u00eauticos n\u00e3o encontra respaldo s\u00f3lido na literatura cient\u00edfica.<\/strong><\/p>\n<p><a href=\"https:\/\/www.thelancet.com\/journals\/lanpsy\/article\/PIIS2215-0366(26)00015-5\/fulltext\" target=\"_blank\" rel=\"noopener\">Revis\u00f5es amplas de estudos internacionais<\/a> (*) indicam que, para condi\u00e7\u00f5es frequentemente divulgadas \u2014 como ansiedade, ins\u00f4nia, dor aguda e depress\u00e3o \u2014 os benef\u00edcios s\u00e3o <strong>m\u00ednimos ou inexistentes<\/strong>.<\/p>\n<p>\ud83d\udccc As exce\u00e7\u00f5es existem, mas s\u00e3o espec\u00edficas:<\/p>\n<ul>\n<li>Medicamentos padronizados<\/li>\n<li>Formula\u00e7\u00f5es controladas<\/li>\n<li>Uso cl\u00ednico restrito<\/li>\n<\/ul>\n<p>\ud83d\udc49<strong> O uso amplo da planta ou de produtos artesanais n\u00e3o segue esse padr\u00e3o.<\/strong><\/p>\n<blockquote><p><strong><span style=\"color: #008000;\">Mais preocupante: diretrizes m\u00e9dicas baseadas em evid\u00eancias n\u00e3o recomendam cannabis inalada nem produtos com alto teor de THC para fins terap\u00eauticos.<\/span><\/strong><\/p><\/blockquote>\n<h2><strong>Impactos reais de cannabis na sa\u00fade mental e f\u00edsica<\/strong><\/h2>\n<p>Os riscos do uso de cannabis s\u00e3o amplamente documentados.<\/p>\n<p>Entre os principais efeitos:<\/p>\n<ul>\n<li>Aumento de sintomas psic\u00f3ticos<\/li>\n<li>Maior incid\u00eancia de ansiedade e depress\u00e3o<\/li>\n<li>Preju\u00edzos cognitivos<\/li>\n<li>Risco cardiovascular (infarto e AVC)<\/li>\n<\/ul>\n<h3><strong>Depend\u00eancia tamb\u00e9m \u00e9 uma realidade<\/strong><\/h3>\n<blockquote>\n<p style=\"text-align: left;\"><span style=\"color: #008000;\">Um ponto cr\u00edtico destacado no artigo:<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"color: #008000;\">\ud83d\udc49 O uso \u201cmedicinal\u201d <strong>n\u00e3o reduz o risco de depend\u00eancia<\/strong>.<\/span><\/p>\n<\/blockquote>\n<p>Pelo contr\u00e1rio:<\/p>\n<ul>\n<li>Est\u00e1 associado a maior frequ\u00eancia de consumo<\/li>\n<li>Pode aumentar a vulnerabilidade ao transtorno por uso de cannabis<\/li>\n<\/ul>\n<h2><strong>Regula\u00e7\u00e3o n\u00e3o elimina desvios nem criminalidade<\/strong><\/h2>\n<p>Dr. Ronaldo tamb\u00e9m chama aten\u00e7\u00e3o para os limites da regulamenta\u00e7\u00e3o. Embora a Anvisa preveja controle de teor de THC e fiscaliza\u00e7\u00e3o do cultivo, experi\u00eancias internacionais mostram que esses limites s\u00e3o frequentemente ultrapassados ao longo da cadeia produtiva \u2014 seja por falhas t\u00e9cnicas, seja por desvios deliberados para o mercado ilegal.<\/p>\n<p>Al\u00e9m disso, a produ\u00e7\u00e3o nacional tende a facilitar o abastecimento paralelo e fortalecer redes il\u00edcitas, que se adaptam rapidamente \u00e0s brechas regulat\u00f3rias.<\/p>\n<blockquote><p><strong><span style=\"color: #008000;\">\ud83d\udc49 Ou seja:<\/span><\/strong><br \/>\n<strong><span style=\"color: #008000;\">A criminalidade n\u00e3o desaparece \u2014 ela se reorganiza.<\/span><\/strong><\/p><\/blockquote>\n<p>A regulamenta\u00e7\u00e3o \u00e9 frequentemente vista como solu\u00e7\u00e3o \u2014 mas a realidade \u00e9 mais complexa.<\/p>\n<h2><strong>O efeito simb\u00f3lico das pol\u00edticas p\u00fablicas<\/strong><\/h2>\n<p>Um dos pontos mais sens\u00edveis do debate \u00e9 o impacto cultural.<\/p>\n<p>Quando o Estado legitima a cannabis como \u201cmedicinal\u201d sem base cient\u00edfica robusta:<\/p>\n<ul>\n<li>A percep\u00e7\u00e3o de risco diminui, especialmente entre jovens<\/li>\n<li>O consumo tende a aumentar, pressionando sistemas de sa\u00fade, seguran\u00e7a p\u00fablica e assist\u00eancia social<\/li>\n<li>Jovens se tornam mais vulner\u00e1veis<\/li>\n<\/ul>\n<h2><strong>Prevenir exige ci\u00eancia \u2014 n\u00e3o narrativa<\/strong><\/h2>\n<blockquote><p><span style=\"color: #008000;\">A mensagem central do Dr. Ronaldo Laranjeira \u00e9 clara:<\/span><\/p>\n<p><span style=\"color: #008000;\"><strong>Prud\u00eancia em sa\u00fade p\u00fablica n\u00e3o \u00e9 conservadorismo.<\/strong><\/span><br \/>\n<span style=\"color: #008000;\"><strong>\u00c9 responsabilidade.<\/strong><\/span><\/p><\/blockquote>\n<p>Decis\u00f5es que impactam milh\u00f5es de pessoas precisam ser baseadas em:<\/p>\n<p>\u2714 Evid\u00eancia cient\u00edfica<br \/>\n\u2714 Avalia\u00e7\u00e3o de risco<br \/>\n\u2714 Compromisso real com a prote\u00e7\u00e3o da popula\u00e7\u00e3o, especialmente de crian\u00e7as e adolescentes.<\/p>\n<h2><strong>O compromisso do Freemind<\/strong><\/h2>\n<blockquote><p><span style=\"color: #008000;\">O Freemind segue alinhado a esse princ\u00edpio:<\/span><\/p>\n<p><span style=\"color: #008000;\">\ud83d\udc49 <strong>Informar para proteger.<\/strong><\/span><\/p><\/blockquote>\n<p>Trazer o debate cient\u00edfico, sem romantiza\u00e7\u00f5es nem simplifica\u00e7\u00f5es, \u00e9 essencial para construir <a href=\"https:\/\/freemind.com.br\/blog\/a-politica-de-drogas-nao-e-simples-e-muitas-vezes-e-capturada-por-um-debate-ideologizado-que-faz-com-que-as-pessoas-que-mais-dependem-da-politica-publica-nao-tenham-acesso-a-ela\/\" target=\"_blank\" rel=\"noopener\">pol\u00edticas eficazes<\/a> de preven\u00e7\u00e3o, tratamento e reinser\u00e7\u00e3o social.<\/p>\n<p>Como sempre refor\u00e7ado pelo Dr. Ronaldo em suas participa\u00e7\u00f5es nos Congressos Freemind, <strong>n\u00e3o basta boas inten\u00e7\u00f5es \u2014 \u00e9 preciso ci\u00eancia, responsabilidade e vis\u00e3o de longo prazo.<\/strong><\/p>\n<p><strong>\ud83d\udccc <em>O <a href=\"https:\/\/bit.ly\/4rJaJih\" target=\"_blank\" rel=\"noopener\">artigo original <\/a>de Dr. Ronaldo Laranjeira foi publicado na Folha de S.Paulo em 19\/02\/2026.<\/em><\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>(*) Acesse tamb\u00e9m o artigo publicado na respeitada revista m\u00e9dica The Lancet, sobre <strong>A efic\u00e1cia e a seguran\u00e7a dos canabinoides no tratamento de transtornos mentais e transtornos por uso de subst\u00e2ncias: uma revis\u00e3o sistem\u00e1tica e meta-an\u00e1lise:<\/p>\n<p><a href=\"http:\/\/freemind.com.br\/blog\/wp-content\/uploads\/2026\/03\/2026-The-efficacy-and-safety-of-cannabinoids-for-the-treatment-of-mental-disorders-and-substance-use-disorders-a-systematic-review-and-meta-analysis.pdf\" target=\"_blank\" rel=\"noopener\">2026 The efficacy and safety of cannabinoids for the treatment of mental disorders and substance use disorders- a systematic review and meta-analysis<\/a><br \/>\n<\/strong><\/p>\n<p>&nbsp;<\/p>\n<blockquote><p><span style=\"color: #008000;\"><strong>Se este conte\u00fado trouxe clareza para voc\u00ea, compartilhe.<\/strong><\/span><\/p>\n<p><span style=\"color: #008000;\"><strong>A informa\u00e7\u00e3o correta pode evitar decis\u00f5es equivocadas \u2014 e proteger vidas.<\/strong><\/span><\/p><\/blockquote>\n<p>&nbsp;<\/p>\n<p>Quer aprofundar esse debate com especialistas do Brasil e do mundo?<\/p>\n<p>\ud83d\udc49 Participe do <strong>11\u00ba Congresso Internacional Freemind<\/strong><br \/>\n\ud83d\udccd Teresina\/PI | 24 a 28 de novembro de 2026<\/p>\n<p>\ud83d\udc49 Garanta sua vaga com desconto: <a href=\"http:\/\/www.congressofreemind.com.br\" target=\"_blank\" rel=\"noopener\">www.congressofreemind.com.br<\/a><\/p>\n<p><span style=\"color: #008000;\"><strong>O conhecimento que previne. A informa\u00e7\u00e3o que protege. Quer saber mais?<\/strong><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cannabis medicinal: riscos, evid\u00eancias e o alerta de Ronaldo Laranjeira Ci\u00eancia, preven\u00e7\u00e3o e responsabilidade n\u00e3o podem caminhar separadas \u2014 especialmente quando o tema envolve sa\u00fade p\u00fablica. Ao longo de mais [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":5223,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"breadcrumbs_single_post":"","page_title_panel":"","breadcrumbs_single_page":"","single_page_alignment":"","single_page_margin":"","page_structure_type":"","content_style_source":"","content_style":"","blog_post_streched_ed":"","blog_page_streched_ed":"","has_transparent_header":"","disable_transparent_header":"","vertical_spacing_source":"","content_area_spacing":"","single_post_content_background":"","single_page_content_background":"","single_post_boxed_content_spacing":"","single_page_boxed_content_spacing":"","single_post_content_boxed_radius":"","single_page_content_boxed_radius":"","disable_featured_image":"","disable_post_tags":"","disable_author_box":"","disable_posts_navigation":"","disable_comments":"","disable_related_posts":"","disable_header":"","disable_footer":"","footnotes":""},"categories":[3,5,6,7,15,16,4457,17,4466],"tags":[4467,4468,892,1158,1663,1880,2427,3095,3203,3627,3678,3952],"class_list":["post-5219","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-congresso-freemind","category-drogas","category-drogas-ilicitas","category-maconha","category-noticias","category-politicas-publicas","category-prevencao","category-saude-mental","tag-cananbis","tag-cannabis-medicinal","tag-congresso-freemind","tag-dependencia-quimica","tag-evidencias-cientificas-2","tag-freemind","tag-maconha","tag-politicas-publicas","tag-prevencao-2","tag-ronaldo-laranjeira","tag-saude-mental","tag-thc","rishi-post"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Cannabis medicinal: riscos ignorados - Blog Freemind<\/title>\n<meta name=\"description\" content=\"Cannabis medicinal tem pouca evid\u00eancia e riscos relevantes. 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