Psychedelia.dk

Habituation & Addiction
Some people with a steady supply or a large quantity of ketamine encounter problems with habituation. One ketamine user recommends that people set a limit on use *before* ever trying it so they can have a benchmark against which to judge usage levels. Write down the limits. What do you think a reasonable maximum usage would be: once per month? once per week? twice per day? Check in regularly with pre-K usage limits and (if possible) have someone who can be confided in about use and who can act as an external sanity check. While not common, it is not unusual for people to fall into patterns of use much higher than they expected. John Lilly is a classic example of a person who ended up using A LOT of ketamine, but there are many others. Using once per day or more may also cause long-term problems. We have received at least one report of a person who used ketamine once to twice per day for six months, and a year and a half later felt that he had done permanent damage to himself, experiencing persistent flashes and streaks in his vision.

Mostly the dangers are more subtle - a type of psychic dependence on ketamine, paranoia, and egocentricism. Many people who use ketamine heavily experience a new perspective on the world which seems to be quite egocentric and conspiratorial. Ketamine can increase one's sense of connection between events, synchronicities, etc. This, when interpreted in certain common ways, can lead people to believe that external events revolve around themselves ("if that happened that way, and this happened this way, both of these things must be about me"), and then, further, that people and events are working in some heretofore unseen concert, which may be either sinister or just novel. Pay special attention to these kinds of thought patterns and ask the question: "what is most likely true" instead of "what may be true."