Side Effects of Shrooms: The Impact Psilocybin
Magic mushrooms, also known as shrooms, contain the chemical psilocybin, the agent responsible for causing the psychedelic or hallucinogenic experiences; but the side effects of shrooms can be dangerous. Especially popular during the 1960s psychedelic era, magic mushrooms continue to be used recreationally. Although mushrooms grow naturally as do other commonly abused drugs like cannabis, they can cause negative effects for users. It’s important to note that the side effects of shrooms can vary significantly among people and that their use can pose legal or long-term risks for individuals.
Resurgence has helped people who have a magic mushroom abuse issue. While psilocybin mushrooms are not believed to be physically addictive, they can cause psychological dependence. Users may also develop a tolerance to the drugs after repeated use. Recreational mushroom use can be problematic for many reasons. If you are struggling to stop using drugs like shrooms, you can rely on Resurgence for help.
The side effects of shrooms can prove dangerous. Abusing any type of drug can result in long-term effects. At our rehab center, clients can expect individualized support. We help clients identify why they feel compelled to abuse drugs and develop strategies to manage those triggers. With high-quality treatment, clients can put their drug use behind them and achieve a healthy lifestyle. The clinicians at Resurgence Behavioral Health are experts in the field of addiction medicine and have experience treating clients who have substance use disorders. We can help you achieve lasting recovery from drug and alcohol abuse and addiction.
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Introduction to Psilocybin and Magic Mushrooms
Psilocybin is the name of the chemical in magic mushrooms that causes hallucinations. Users may believe they see or hear things that aren’t really there. They may feel as if they’re being touched. The altered reality is part of the psychedelic experience these mushrooms are known for, but not all users can expect a pleasurable experience, and the high that the mushrooms cause can come with negative side effects.
Magic mushrooms can be found in powder, dried, and fresh forms. Users can eat, snort, or even inject them. In the United States, psychedelic mushrooms are illegal and classified as a Schedule I drug. The potential for abuse is high. The side effects of shrooms can also prove dangerous. The mushrooms are native to subtropical and tropical regions of the U.S., Mexico, and South America. Sold on the street, shrooms can cause psychological and physiological effects that can be detrimental to users’ health and well-being.
The Immediate Aftermath: Short-Term Effects of Shrooms
People who abuse shrooms may experience psilocybin side effects that result in an altered perception of reality, hallucinations, nausea, vomiting, increased sensory perception, anxiety, and paranoia. Because people may struggle to differentiate between reality and their psychedelic experience, shrooms can be dangerous. Some people might experience balance or coordination issues that can increase the risk of a fall or another type of accident. Others might experience elevated heart rate or mental fatigue.
The short-term effects of shrooms may wear off after a few hours or less, but the effects may prove longer for some. The effects of magic mushrooms often vary from one user to another. Although some people find that shroom abuse is positive, others have a decidedly negative use experience.
The Lasting Impression: Long-Term Effects of Psilocybin
The long-term effects of psilocybin are still being studied, so there is a limited amount of information about its long-term effects. What is known is that the chemical psilocybin converts to psilocin in the body when metabolized. Some long-term effects of the chemical can result in changes in personality and mood that may prove longer-lasting than is common for the typical mushroom-induced high.
Regular consumption of magic mushrooms may impact serotonin production and function in the brain. This means that the chemical psilocybin could alter brain chemistry beyond the typical single use. Serotonin affects emotions, mood, and even cognitive functions, so altering these neurotransmitters can have serious consequences for mushroom users.
Another long-term effect can be the development of a condition known as hallucinogen-persisting perception disorder (HPPD). This disorder can last for weeks or even months, causing people to see things that aren’t there or to see halos around objects they’re viewing. The disorder can cause flashbacks and paranoia as well as symptoms of anxiety.
Metabolism and Detection: How Long Does Psilocybin Stay in Your System?
Psilocybin from magic mushrooms can be detected in the system for months, but the high it delivers may only last an hour or so. Generally, the high peaks after about two hours and then dissipates. The chemical psilocybin may only be detected in the blood for a few hours after use. However, it may be detected in a person’s hair for several months. Psilocybin may only be detected in urine for a few days after its last use.
Remember, too, that the disorder caused by some hallucinogens like magic mushrooms, though rare, may cause long-term symptoms that last for several months. Typically, people do not experience magic mushroom short-term symptoms beyond a few hours, but with current drug testing, psilocybin is detectable, at least in a user’s hair, for a couple of months.
Beyond the Experience: Overall Impact of Magic Mushrooms
Magic mushrooms do not have a high risk of addiction, but they can be dangerous. Moreover, a person may develop a psychological dependence on drugs of this nature. Many users also take other drugs. Mixing drugs can lead to serious mental and physical health effects that could require medical attention. The abuse of illicit drugs can result in legal ramifications too.
In our experience, many people who take magic mushrooms have also used other drugs. A lifestyle that involves drugs can leave a person at increased risk of developing a substance use disorder. At Resurgence, we help clients get to the root of why they abuse drugs so that they can clearly assess how these substances impact and impede their life. In some cases, clients use drugs to cope with stress or even an undiagnosed mental illness like depression or anxiety. Others may take them because of other environmental factors like peer pressure or a partying lifestyle.
Magic mushroom hallucinations at a concert may seem harmless for some, but a person doesn’t know how their mind and body will react to the substance or the dose. Moreover, users generally don’t know if the substances they’re taking are actually what they think; many drugs sold illicitly are laced with other drugs, which can result in a dangerous–even lethal–drug cocktail.
Navigating the World of Shrooms with Caution and Respect
Magic mushrooms are illegal, but even legal drugs can pose health risks. Among many people, shrooms are less dangerous than more addictive substances like heroin; however, that’s not always the case for individuals who may have a serious adverse reaction to the drug or suffer an accident or legal consequence related to their magic mushroom use.
If you are engaged in abusing drugs like shrooms, it’s time to evaluate your use and possible drug problems. Contact Resurgence so we can evaluate your condition. We offer inpatient and outpatient treatment programs that are customized for each client. With treatment, you can live free from the grasp of drugs and alcohol.
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Frequently Asked Questions
What are the most dangerous side effects of magic mushrooms?
The most dangerous side effects of psilocybin mushrooms are psychological rather than physiological. Severe panic, complete loss of reality contact, paranoia, and dangerous impulsivity acting on distorted perceptions are the primary risks. In people predisposed to psychosis, psilocybin can trigger a psychotic episode that requires emergency psychiatric care. Physical risks include nausea and vomiting, elevated heart rate and blood pressure, and the risk of accidental physical harm during an overwhelming experience. Unlike many drugs, psilocybin has very low direct organ toxicity, but the psychological risks are real and can have lasting consequences.
Can magic mushrooms trigger schizophrenia?
Psilocybin does not cause schizophrenia in people without a pre-existing vulnerability, but it can precipitate the onset of psychotic illness in people who are genetically predisposed. For people with a personal or family history of psychosis, schizophrenia, or bipolar disorder with psychotic features, psilocybin use carries significant risk of triggering a first episode of psychosis that may not fully resolve. This is one of the primary contraindications in clinical psilocybin research. For people without this vulnerability, research has not established that psilocybin causes lasting psychosis, though a difficult experience can cause significant psychological distress that may take weeks to process.
How long do the effects of magic mushrooms last?
The primary psychedelic effects of psilocybin mushrooms taken orally typically begin 30 to 60 minutes after ingestion, reach peak intensity at 2 to 3 hours, and resolve over 4 to 6 hours for a standard dose. Higher doses extend the experience. The after-effects including fatigue, emotional sensitivity, and a dreamlike quality can linger for 12 to 24 hours after the primary experience ends. Some people report a period of afterglow lasting several days, characterized by improved mood and openness. The duration is influenced by the specific species, dose, individual metabolism, and whether the mushrooms are taken fresh or dried.
Can you develop a tolerance to magic mushrooms?
Yes, psilocybin tolerance develops rapidly with repeated use. Taking magic mushrooms two days in a row produces a noticeably diminished effect on the second day, and daily use would produce almost no effect within a few days. This is because psilocybin tolerance is mediated by 5-HT2A receptor downregulation that happens quickly and recovers within about a week. This cross-tolerance also applies to LSD and other serotonergic psychedelics. Because tolerance develops so rapidly, frequent use of psilocybin to achieve a strong psychedelic effect is self-limiting, which is one reason why classical psychedelics have low rates of traditional addiction.
What does a good shroom trip feel like?
A positive psilocybin experience, sometimes called a peak experience, typically involves enhanced emotional openness, feelings of deep connection to others and the environment, visual beauty and amplification of sensory detail, a sense of meaning and significance, and in some cases profound feelings of unity, awe, or what researchers call mystical experience. Many people report insights into their own psychology, relationships, or life patterns. The experience often has an emotional and intellectual richness that people describe as unlike anything else they have encountered. These are the qualities that drive clinical research into psilocybin for depression, anxiety, and addiction treatment.
Can shrooms make ADHD worse?
Psilocybin's effects on ADHD symptoms are complex and not well-studied in clinical populations. Some people with ADHD report that psilocybin transiently intensifies the difficulty of focusing on any one thing, as the default mode network disruption from psilocybin can produce a scattered, hyperassociative mental state. Others report that post-psilocybin afterglow includes improved focus and reduced impulsivity for days after the experience. These are anecdotal and highly variable. Clinical research on psilocybin for ADHD is in very early stages, and no evidence-based recommendation exists. People with ADHD considering psilocybin should be aware of unpredictable cognitive effects.
How long does psilocybin stay in your system for a drug test?
Standard workplace drug panels do not screen for psilocybin or its metabolite psilocin, so a typical 5-panel or 10-panel test will not detect mushroom use. Specialized tests can detect psilocin in urine for approximately 1 to 3 days after use. Hair follicle tests can potentially detect psilocin for up to 90 days, though this testing is rare and expensive. If you are subject to comprehensive drug testing that specifically includes psilocybin, the detection window is short. Most employment and legal drug tests do not include psilocybin as part of their standard screens.
Is psilocybin being used to treat mental health conditions?
Yes, psilocybin is in active clinical investigation for several mental health conditions. In 2023 and 2024, psilocybin therapy received Breakthrough Therapy designation from the FDA for major depressive disorder, and Australia approved psilocybin therapy for treatment-resistant depression in 2023. Clinical trials have shown significant results for treatment-resistant depression, major depressive disorder, end-of-life anxiety, alcohol use disorder, and nicotine dependence. The treatment model involves carefully prepared, supervised psychedelic sessions combined with therapeutic integration. Oregon and Colorado have moved toward regulated supervised psilocybin access for adults as of 2023 and 2024.
What is the difference between a microdose and a full dose of psilocybin?
A microdose of psilocybin (typically 0.1 to 0.3 grams of dried mushrooms) is sub-perceptual, meaning it does not produce noticeable psychedelic effects but is taken for its reported benefits to mood, focus, and creativity. A full recreational dose (1.5 to 3.5 grams) produces clear psychedelic effects including visual alterations, emotional amplification, and altered sense of self and time. A high dose (3.5 grams and above) can produce what researchers call a full mystical experience with ego dissolution. Microdosing and full-dose experiences are used for very different purposes and carry different risk profiles, with full doses carrying significantly greater psychological risk.
Can psilocybin mushrooms cause addiction?
Classical psychedelics including psilocybin have very low addiction potential compared to most other psychoactive substances. Psilocybin does not activate dopamine reward pathways in the way that opioids, cocaine, or alcohol do, and does not produce the physical dependence or withdrawal syndrome that characterizes addiction to those substances. Tolerance develops rapidly and reverses quickly, making binge use self-limiting. However, psychological dependence, where someone compulsively seeks the psilocybin experience to escape emotional pain or reality, can develop. Overall, psilocybin falls among the least addictive substances, but that does not mean it is without risk for some individuals.
