Ketamine is an anesthetic given for animals often before they are operated on. It is typically not prescribed for human beings. However, some people do abuse it even though it's not lawful to even use. Ketamine is illegal and is a schedule three drug and persons who are found to be in possession of it will face federal charges.

Ketamine can be taken a number of ways. Individuals can snort it, take it orally or inject it into their muscles.  Short-term effects of ketamine include stumbling around, hallucinations, blacking out, altered sensations and vertigo.  Individuals may also feel more social and sexual.  Other common effects include the inability to remember things, depression, feeling like one is floating, is separated from their body, has amnesia and delirium. Severe feelings of fright may also occur when a person has a bad trip.

When a person takes a large amount of Ketamine they may begin to feel separated from their body, they may become nauseous, it may be even harder for them to move and they may also have near-death experiences. Blacking out is also quite common.

It is pretty well established that Ketamine can also be psychologically addicting. Some people also believe that it is physically addicting as well, though not terribly so.  The dosage amount of ketamine for recreational use will differ based on what form the drug is taken in. People who take it orally generally take more. Individuals that snort it often times take the least amount between 15 and 20 mg.

It generally takes somewhere between one and thirty minutes before a person feels the effects of Ketamine.  It gets into the system fastest if it is injected into the muscles.  A Ketamine high will last between 30 minutes and 2 hours. Those who take the drug orally will have the most lasting effects.  

It is a possible to overdose and even die from Ketamine.  Generally, about 1 g is lethal. Individuals that have taken a great amount of the drug may begin to vomit, become nauseous, have strong hallucinations, feel like they are dying, be unable to move and have trouble breathing. If too much of the drug is taken, death can occur.