Get real, that is not a drug, and will not intoxicate you.
Did you mean Nitrous Oxide?
Hypercapnia will make a person super suggestible. It will also stimulate severe panic attacks and anxiety.
The LSD researchers of the 60’s had trouble identifying subjects who were going to have bad trips so they prescreened the subjects with high levels of CO2 and watched their response.
You had better watch out for the dihydrogenmonoxide as it will kill you!
Carbogen, or "Meduna's Mixture" is a combination of carbon dioxide and oxygen which contains plenty of oxygen for a human to breathe, but which also has higher than normal levels of carbon dioxide. When taken intentionally to trigger an abreaction it can also cause feelings of panic and anxiety.
Carbogen was used in combination with psychedelic therapy (primarily in the 1960's), as an introductory experience to test how a person would react to unusual and difficult sensations. After ten or fifteen lungfuls, users reported relatively profound or strong experiences such as 'reliving childhood trauma'. If an individual paniced or had a particularly bad response to carbogen, a therapist might choose not to go ahead with the psychedelic session.