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Itchiness is the sensation that causes a person the desire or reflex to scratch at their skin. Substances such as opioids, that activate histamine receptors or trigger histamine release can cause this effect. A way to counteract the itchiness in cases of substance use is to take an antihistamine such as DPH (Diphenhydramine).

Psychoactive substances

Compounds within our psychoactive substance index which may cause this effect include:

See also

External links