Can Psychedelic Mushrooms Be Contaminated or Laced With Other Substances?

Psilocybin mushrooms, commonly known as “shrooms” or “magic mushrooms”, are a type of psychedelic drug that can produce changes in perception, mood, and consciousness. While many people consider shrooms to be relatively safe compared to other illicit drugs, there are still concerns about contamination and adulteration. Mushrooms sold as psychedelics could potentially be laced with other more dangerous substances, either accidentally or intentionally.

In their pure form, psilocybin mushrooms are not generally considered to be toxic or cause major health issues at typical dosage levels. However, the main risk comes from the potential for the mushrooms to be mixed with unknown additives or substituted with the wrong mushroom species. Inexperienced foragers picking mushrooms in the wild could accidentally select poisonous mushrooms instead of psilocybin varieties. And when purchased from illegal sources, there is always a possibility that the mushrooms could be “laced” or “cut” with other drugs, similar to how substances like MDMA, cocaine and heroin are sometimes adulterated with cheap and potentially dangerous additives like fentanyl.

What Are the Dangers of Consuming Mushrooms Laced With Other Drugs?

The main danger of taking shrooms that have been mixed with other substances is the unpredictable effects and health risks. If a batch of mushrooms contains other drugs that the user is not expecting, it could lead to a much stronger or unpleasant experience than anticipated. There have been reports of dried mushrooms being laced with substances like PCP, ketamine, or LSD that could cause a dangerously intense trip for an unsuspecting user. Stimulants like amphetamine or cocaine could also be added to powdered or capsule forms of mushrooms.

Even more concerning is the risk of mushrooms being laced with highly potent opioids like fentanyl, which has been found in many street drugs in recent years. Ingesting even a small amount of fentanyl can lead to fatal respiratory depression. Opioid overdose is now the leading cause of accidental death in the US. While fentanyl is more commonly found in counterfeit pain pills and heroin, it could theoretically be mixed into any illicit drug, including mushrooms.

“The primary risk of taking magic mushrooms is consuming the wrong type of mushroom, resulting in severe illness or death. It is extremely unlikely that a dealer would add other substances to real psilocybin mushrooms.” (RollSafe.org)

Besides the risk of the shrooms themselves being adulterated, taking mushrooms in combination with other drugs intentionally could also lead to negative health consequences. Mixing psychedelics with substances like alcohol, cannabis, or prescription medications can make the effects highly unpredictable and increase the chance of adverse reactions like anxiety, psychosis, or cardiovascular issues. Mushrooms can also interact dangerously with drugs like Tramadol, lithium, or stimulants.

How to Tell if Psychedelic Mushrooms Have Been Laced or Contaminated

It can be very difficult to determine if a batch of dried mushrooms or powdered shrooms have been mixed with other drugs. Mushrooms laced with other substances may look identical to unadulterated mushrooms. Purchasing an illicit substance always carries an inherent risk of contamination. The only way to know for sure would be to test the mushrooms with a drug checking kit. However, while reagent test kits can identify the presence of common adulterants, they cannot detect every possible additive and may not be able to measure purity or potency.

When consuming mushrooms, it’s important to be alert for effects that seem unusual or different than a typical shroom trip. If the experience feels much stronger, lasts longer, or produces atypical effects, it’s possible the mushrooms could have been laced, especially if other people who took mushrooms from the same batch had similar anomalous experiences. Unusually bitter or chemical tastes, or burns/numbness in the mouth could also be signs of adulteration.

Harm Reduction Tips for Safer Psychedelic Mushroom Use

While it may not be possible to completely eliminate the risks of taking illegal psychoactive substances, there are some steps that can reduce the potential harms:

  • Always buy from a trusted source and try to verify the origin/supply chain of the mushrooms if possible
  • Closely examine the mushrooms for any unusual odors, colors or tastes that could indicate contamination
  • Test a small amount first and wait at least an hour before taking more to assess the effects
  • Avoid mixing mushrooms with other drugs or medications
  • Do not take psychedelics if you have underlying mental health conditions or a family history of psychosis
  • Never forage for psilocybin mushrooms unless you have expert guidance, as misidentification is common and many toxic mushroom species closely resemble psychoactive varieties

The safest option is always to avoid illegal drugs entirely, as it is impossible to guarantee their purity or rule out adulteration when purchasing from unregulated markets. If you do decide to ingest psychedelic mushrooms, be aware of the risks, start with a low dose, have a trip sitter present, and seek medical attention immediately if concerning effects emerge. While rare, laced shrooms do present real dangers to unsuspecting users.