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Compared to ingestion, the faster absorption of insufflated cocaine results in quicker attainment of maximum drug effects.
Snorting cocaine produces maximum physiological effects within 40 minutes and maximum psychotropic effects within 20 minutes, however, a more realistic activation period is closer to 5 to 10 minutes, which is similar to ingestion of cocaine.
When inhaled or injected, it causes a numbing effect.
Crack cocaine is a smokeable form of cocaine made into small "rocks" by processing cocaine with sodium bicarbonate (baking soda) and water.
Many users rub the powder along the gum line, or onto a cigarette filter which is then smoked, which numbs the gums and teeth – hence the colloquial names of "numbies", "gummers", or "cocoa puffs" for this type of administration.
This is mostly done with the small amounts of cocaine remaining on a surface after insufflation (snorting).
Contrary to popular belief, both ingestion and insufflation result in approximately the same proportion of the drug being absorbed: 30 to 60%.
Mental effects may include loss of contact with reality, an intense feeling of happiness, or agitation.
Physical symptoms may include a fast heart rate, sweating, and large pupils.
In Australia it is currently Some ENT specialists occasionally use cocaine within the practice when performing procedures such as nasal cauterization.
In this scenario dissolved cocaine is soaked into a ball of cotton wool, which is placed in the nostril for the 10–15 minutes immediately before the procedure, thus performing the dual role of both numbing the area to be cauterized, and vasoconstriction.