T40: Poisoning by narcotics and psychodysleptics [hallucinogens]
T40.9: Poisoning: Other and unspecified psychodysleptics [hallucinogens]
Hallucinogens are substances that affect things like your thoughts, your sensations and your perception. Hallucinogens can produce hallucinations. Hallucinogens include active agents that occur in certain fungi, for example.
A substance can cause poisoning if, for example, too much of it is taken. The substance may also be administered or taken by mistake.
Hallucinogen poisoning can cause the heart to race and the blood pressure to rise. You can get anxiety or panic attacks. The pupils are typically dilated. You may see or hear things that are not there. Seizures can also occur.
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