Olfactory depression (also called anosmia) is the experience of smells becoming significantly vaguer, weaker, and less noticeable than that of everyday sobriety. At higher levels, this can result in the smells becoming completely absent and significantly less impactful.
Olfactory depression is often accompanied by other coinciding effects such as tactile suppression and physical disconnection. It is most commonly induced under the influence of moderate dosages of dissociative compounds, such as ketamine, PCP, and DXM.
Compounds within our psychoactive substance index which may cause this effect include:
Annectdotal reports which describe this effect with our experience index include: