Dopalacze: the impact of unpredictable new drugs

Under the “#WspólnieBezpieczni” banner, attention turns to a topic that often defies quick classification: so‑called “Dopalacze” — new psychoactive substances that are marketed as supposedly “legal” or “harmless”, but in reality can have highly unpredictable effects. Toxicologist lek. med. Eryk Matuszkiewicz from the Toxicology Department of the Franciszek Raszeja Municipal Hospital in Poznań describes how varied the consequences of use can be, and why unpredictability is the central risk.

What is meant by “Dopalacze”

In Poland, the term is commonly used for a broad spectrum of substances that are deliberately modified to circumvent existing bans or, at least temporarily, remain in legal grey zones. They are often chemically altered stimulants, cannabinoid‑like compounds, or mixtures whose composition can change rapidly. This very dynamism makes it difficult to reliably predict effects and side effects — even when users believe they are buying a “known” product.

From a toxicological perspective, the starting point is therefore critical: even small differences in purity, dosage, or accompanying substances can determine whether discomfort remains mild or a life‑threatening poisoning develops. In addition, substances are not infrequently offered as powder, tablets, or herbal blends without stating the actual active ingredient.

Why the effects are so hard to predict

Matuszkiewicz emphasizes that clinical presentations after the use of new psychoactive substances can vary widely. While some compounds primarily act as stimulants and trigger agitation and cardiovascular problems, others show a sedating, dissociative, or hallucinogenic component. It is also problematic that products sometimes consist of multiple active substances that amplify each other or overlap in unpredictable ways.

The risk increases further when several substances are used at the same time — for example in combination with alcohol, medications, or other drugs. This raises the burden on the heart and circulation, increases the risk of impaired consciousness, and makes dangerous interactions more likely. In emergency medicine, every minute can matter because conditions may deteriorate abruptly.

Typical health consequences and warning signs

The effects range from comparatively mild symptoms to acute emergencies. Many affected people initially report restlessness, anxiety, tremors, nausea, or severe dizziness. In more serious cases, seizures, severe arrhythmias, or pronounced disturbances of consciousness occur. Psychological crises with panic, paranoia, or aggressive behavior are also possible — often triggered by a combination of the substance’s effect, overdose, and individual vulnerability.

From a toxicology perspective, the following warning signs in particular must be taken seriously:

• strong palpitations, chest pain, or a striking rise in blood pressure
• seizures, fainting, or severe confusion
• breathing problems, bluish lips, or unusually shallow breathing
• extreme agitation, hallucinations, or uncontrollable aggression
• severe overheating, heavy sweating, and muscle rigidity

Especially with new substances, the risk is high that familiar “experience” from one’s surroundings will not help. What causes “only” agitation in one person may lead to a dangerous course in another — depending on body weight, pre‑existing conditions, medications taken, and not least the true composition of the substance.

What matters in the emergency department

In an acute situation, the medical team’s priority is to stabilize vital functions: breathing, circulation, and consciousness. Because it is often unclear which active substance was used, treatment is guided by symptoms. Diagnostics and monitoring are adjusted to detect risks such as arrhythmias, seizures, or dangerous overheating early.

Matuszkiewicz makes it clear that openness can be crucial in such moments. If affected individuals or companions describe as precisely as possible what was taken, in what form, and when, it helps with assessment. Even if the exact substance remains unknown, information about packaging, appearance, or co‑use can support medical evaluation. At the same time, relatives should not hesitate to seek help early rather than hoping for spontaneous improvement.

Prevention: why education matters

Above all, the piece shows one thing: the greatest problem is not only the danger of individual compounds, but the interplay of ignorance, changing mixtures, and false reassurance. In everyday life, “legal” is quickly equated with “safe” — an equation that does not hold for new psychoactive substances. Even small dosage errors, unknown potency, or additional adulterants can create situations that are medically difficult to control.

Under the “#WspólnieBezpieczni” umbrella, a preventive perspective is therefore encouraged: name risks, recognize warning signs, and react quickly when in doubt. From a toxicology viewpoint, it is important that especially young people and those around them understand that “Dopalacze” are not a reliable category, but a constantly shifting field — with potentially serious consequences for body and mind.