The regular use of nitrous can cause long-lasting numbness in the extremities and other neurological problems. Ketamine usually comes as a liquid in small pharmaceutical bottles, and is most often cooked into a white powder for snorting. At lower doses it has a mild, dreamy feeling similar to nitrous oxide. Users report feeling floaty and slightly outside their body. Numbness in the extremities is also common.
Many users find the experience spiritually significant , while others find it frightening.
While in a K-hole it is very difficult to move. People usually remain seated or lying down during the experience. The effect comes on within about 5 to 10 minutes. 100mg is usually enough to enter a K-hole. If liquid is injected into the muscle, less is needed to enter a K-hole.