{"id":2224,"date":"2021-06-10T19:36:00","date_gmt":"2021-06-10T23:36:00","guid":{"rendered":"https:\/\/www.therecoveryvillage.com\/?page_id=2224"},"modified":"2022-08-25T14:35:47","modified_gmt":"2022-08-25T18:35:47","slug":"drugs-dilated-pupils","status":"publish","type":"page","link":"https:\/\/www.therecoveryvillage.com\/drug-addiction\/drugs-dilated-pupils\/","title":{"rendered":"Drug-Induced Dilated Pupils: What Drugs Cause Dilated Pupils?"},"content":{"rendered":"\n<h3>Looking for enlarged pupils can help determine if someone has used drugs. Certain substances, like stimulant drugs, antidepressants, and LSD, have this effect.<\/h3>\n\n\n\n<p>There are many signs we can look for that can indicate drug use. In law enforcement and medical communities that deal with\u00a0<a href=\"https:\/\/www.therecoveryvillage.com\/prescription-drug-addiction\/\">substance misuse<\/a>, dilated pupils is considered a key marker of illicit drug use. Depending on the dilation level of the eyes, this indicator can even shed light on the particular drug that was used.<\/p>\n\n\n\n<div class=\"is-layout-flow wp-block-group is-style-ataglance\"><div class=\"wp-block-group__inner-container\">\n<h3>Article at a Glance:&nbsp;&nbsp;<\/h3>\n\n\n\n<ul><li>Certain drugs cause dilated pupils because of their effects on the parasympathetic or sympathetic nervous systems.\u00a0\u00a0<\/li><li>SSRI antidepressants, amphetamines, ecstasy, cocaine, psilocybin, LSD, and mescaline can cause dilated pupils.\u00a0\u00a0<\/li><li>Pupil dilation is not a conclusive way to assess sobriety.\u00a0\u00a0<\/li><li>However, dilated pupils are one of many signs of substance misuse to watch for in a loved one.\u00a0\u00a0<\/li><li>The \u201cDrug Recognition Card\u201d is an official chart used by law enforcement and emergency medical professionals that shows pupil reactions to various drugs.\u00a0<\/li><\/ul>\n<\/div><\/div>\n\n\n\n<h2>Why Do Pupils Dilate?<\/h2>\n\n\n\n<p>Dilation of the pupil (mydriasis), or opening of the iris, is caused by the activation of two muscle groups in the eye: the iris sphincter and the iris dilator. The body\u2019s parasympathetic nervous system, which controls a person\u2019s autonomic bodily processes when at rest, triggers the sphincter response. The&nbsp;<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/books\/NBK535421\/\" target=\"_blank\" rel=\"noreferrer noopener\">sympathetic nervous system<\/a>, which controls the body\u2019s fight-or-flight response, triggers action in the dilator.<\/p>\n\n\n\n<p>Certain drugs, most commonly psychotropic stimulants, have a large effect on both and cause the pupils to respond by dilating. Drugs can affect the parasympathetic or sympathetic nervous systems individually or in combination, depending on the type of drug taken. This occurs when elements of the drugs affect neurotransmitters in the brain that work in part to control mydriasis, causing the pupils to dilate.<\/p>\n\n\n\n<h2>Drugs that Cause Dilated Pupils<\/h2>\n\n\n\n<p>Many drugs can work on the brain\u2019s neurotransmitters and affect the&nbsp;<a href=\"https:\/\/www.healthline.com\/health\/dilated-pupils-drugs#drugs\" target=\"_blank\" rel=\"noreferrer noopener\">dilation of the pupils.<\/a>&nbsp;These include:<\/p>\n\n\n\n<ul class=\"is-style-columns-3\"><li>SSRI antidepressants<\/li><li>Amphetamines<\/li><li>MDMA (ecstasy\/molly)<\/li><li>Psilocybin<\/li><li>LSD (acid)<\/li><li>Cocaine (Crack)<\/li><li>Mescaline\u00a0<\/li><li>Methamphetamines (meth)<\/li><li>Stimulants (Adderall and Ritalin)<\/li><\/ul>\n\n\n\n<p>In these cases, serotonin (a brain chemical affecting mood) agonizes the 5-HT2A receptors in the brain and kicks off dilation.&nbsp;<\/p>\n\n\n\n<p>Benzodiazepine drugs like&nbsp;<a href=\"https:\/\/www.therecoveryvillage.com\/xanax-addiction\/\">Xanax<\/a>&nbsp;can also cause pupils to dilate because they affect the activity of the neurotransmitter GABA, which has a muscle-relaxing effect. Stimulant medications like Ritalin and Adderall, which are used to treat&nbsp;<a href=\"https:\/\/www.therecoveryvillage.com\/mental-health\/adhd\/\">ADHD<\/a>, are also among drugs that cause dilated pupils.&nbsp;<\/p>\n\n\n\n<p>Simply put, drugs affect muscles in the eye that control the amount of light that is allowed in. Since many drugs affect perception in the brain, the reaction to light can be altered, allowing the pupils to react in an atypical fashion.&nbsp;<\/p>\n\n\n\n<p>That being said, analyzing pupil dilation alone is an imperfect way to assess sobriety. As a result, officials have learned to look for other indicators, such as heavy sweating, dry mouth, excessive activity and <a href=\"https:\/\/www.therecoveryvillage.com\/drug-addiction\/signs-drug-addiction\/\">other symptoms<\/a> like mood swings.<\/p>\n\n\n\n<h2>Dilated Pupils on Drugs \u2014 Seeing the Difference<\/h2>\n\n\n\n<p>If there is suspicion of&nbsp;<a href=\"https:\/\/www.therecoveryvillage.com\/prescription-drug-addiction\/\">substance misuse<\/a>, there is a tool to help determine the amount of pupil dilation and potential source. An official chart called the \u201c<a href=\"https:\/\/www.theiacp.org\/drug-recognition-experts-dres\" target=\"_blank\" rel=\"noreferrer noopener\">Drug Recognition Card<\/a>,\u201d used mostly by law enforcement and emergency medical teams, shows images of pupils reacting to various drugs. This card is based on standards set by the International Association of Chiefs of Police (IACP) and provides a means to readily assess likely substance use categories (depressants, stimulants, hallucinogens, phencyclidine, narcotics, inhalants, cannabis) based on pupil diameter.<\/p>\n\n\n\n<p>The chart lists the drug categories in columns and the physical conditions noticed to determine a likely match, such as gaze, convergence, state of pupil dilation or light reaction. It also features a scale of pupil dilation that, when held up to the person, provides a physical, visual gauge for referencing how much or little dilation there is. Other charts showing the effects of drugs on pupil dilation do exist; however, they are not always as reliable as the one provided by the IACP.<\/p>\n\n\n\n<p><strong>If you or a loved one is affected by&nbsp;<a href=\"https:\/\/www.therecoveryvillage.com\/drug-addiction\/\">drug use<\/a>&nbsp;and looking to begin a sober lifestyle, The Recovery Village is here to help.&nbsp;<\/strong><a href=\"https:\/\/www.therecoveryvillage.com\/contact\/\"><strong>Reach out<\/strong><\/a><strong>&nbsp;to us today to talk to an addiction professional about your treatment options.<\/strong><\/p>\n\n\n\n<p><a href=\"tel:+18557844701\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Looking for enlarged pupils can help determine if someone has used drugs. Certain substances, like stimulant drugs, antidepressants, and LSD, have this effect. There are many signs we can look for that can indicate drug use. In law enforcement and medical communities that deal with\u00a0substance misuse, dilated pupils is considered a key marker of illicit&#8230;<\/p>\n","protected":false},"author":5,"featured_media":0,"parent":2270,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"templates\/content-page-template.php","meta":{"_searchwp_excluded":"","_links_to":"","_links_to_target":""},"categories":[155],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.14 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What Drugs Cause Dilated Pupils? MDMA, LSD, Cocaine and More<\/title>\n<meta name=\"description\" content=\"Drugs such as cocaine, ecstasy, mescaline, Xanax, antidepressants and LSD affect neurotransmitters in the brain, causing pupils to dilate. Learn how.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.therecoveryvillage.com\/drug-addiction\/drugs-dilated-pupils\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What Drugs Cause Dilated Pupils? MDMA, LSD, Cocaine and More\" \/>\n<meta property=\"og:description\" content=\"Drugs such as cocaine, ecstasy, mescaline, Xanax, antidepressants and LSD affect neurotransmitters in the brain, causing pupils to dilate. 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