Dominic Stone
Ketamine is a powerful prescription anesthetic that is used to induce a loss of consciousness and relieve pain. It is also used to treat depression and acute suicidal ideation. While it is a prescription drug, it is also abused illegally due to its dissociative properties. The drug has various side effects, including hallucinations, visual disturbances, and urinary dysfunction. Ketamine may also cause serious reactions in children under three years of age, and it can lead to liver problems in some cases. Given the various side effects of ketamine, it is important to consider whether it can cause muscle spasms.
| Characteristics | Values |
|---|---|
| Muscle spasms | No evidence found |
| Side effects | Hallucinations, vivid dreams, out-of-body experiences, unusual thoughts, sedation, visual disturbances, urinary dysfunction, liver problems, dizziness, drowsiness, confusion, memory loss, distorted senses, seizures, excitation, muscle rigidity, respiratory depression, agitation, increased intracranial pressure, cognitive deficits, nausea, vomiting, stomach pain, yellow eyes or skin |
| Overdose treatment | Emergency care should be contacted immediately; benzodiazepines such as lorazepam may be used for seizures, excitation, or muscle rigidity; respiratory support is rarely needed |
| Use cases | General anesthesia, depression, pain management, treatment of acute suicidal ideation, burn therapy, battlefield injuries, anesthesia for children who cannot use other anesthetics |
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What You'll Learn
Ketamine's side effects
Ketamine is a powerful prescription general anesthetic that is also used to treat acute and chronic pain, depression, and acute suicidal ideation. It is also abused as an illegal drug. While ketamine is considered safe for medical use, it can cause side effects, especially when used inappropriately or in combination with other drugs.
Ketamine can cause short-term memory loss, amnesia, and sedation. It can also lead to hallucinations, vivid dreams, out-of-body experiences, and unusual thoughts or behaviors. These psychological side effects can be severe and may require ongoing monitoring or discontinuation of therapy. Ketamine may also cause an individual to feel confused, excited, or detached from their environment. In some cases, people may see or hear things that are not really there, or feel as if they are dreaming while they are awake.
Ketamine has also been known to cause liver problems and dysfunction. It can lead to bloating of the stomach, dark urine, light-colored stools, nausea, vomiting, and stomach pain. It may also cause an increase in intracranial pressure, so practitioners must closely monitor anyone with high intracranial pressure. Ketamine can also cause cognitive or thinking deficits, and doctors do not recommend it for people with certain conditions, such as high blood pressure, schizophrenia, or those who are pregnant or breastfeeding.
In terms of physical side effects, ketamine can cause dizziness, drowsiness, and problems with balance and coordination. It may also lead to respiratory depression, especially in cases of overdose or rapid administration. An overdose on ketamine can be life-threatening and lead to unconsciousness and dangerously slowed breathing. Benzodiazepines may be used to treat seizures or muscle rigidity resulting from a ketamine overdose.
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Ketamine overdose
Ketamine is a powerful anesthetic that can also be used to treat acute and chronic pain and depression. While the drug is approved by the U.S. Food and Drug Administration for multiple uses, its effects at low doses are not extensively studied. Ketamine overdose can be fatal, although death from ketamine poisoning alone is rare.
Combining ketamine with alcohol may increase the risk of fatal toxicity as both substances impact respiration and cardiovascular functioning. Additionally, ketamine use has been associated with accidental injury and death, including falling, drowning, vehicular accidents, and hypothermia. Certain medical conditions, such as pre-existing heart disease and hypertension, can further increase the risk of cardiovascular complications in association with ketamine toxicity.
Symptoms of a ketamine overdose include nausea and/or vomiting, severe confusion, chest pain, irregular heart rate, violence or terrors possibly related to hallucinations, extreme sedation, loss of consciousness or coma, heightened blood pressure, and disrupted respiration. As ketamine can cause paralysis, individuals who overdose and start vomiting may choke on their vomit.
Treatment for ketamine overdose consists primarily of supportive care, with more severe cases requiring medical monitoring and intubation if necessary. Doctors may use activated charcoal to aid with gastrointestinal detox in a supervised medical setting. Once an individual has been medically stabilized, they can be encouraged to seek substance use treatment to address their ketamine misuse and prevent future dangers.
The best way to prevent ketamine overdose and addiction is to avoid recreational ketamine use. If you or someone you know is struggling with ketamine use, it is important to reach out to a healthcare professional or a substance use treatment center for help.
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Ketamine abuse
Ketamine is a dissociative anesthetic that was approved for use by the U.S. Food and Drug Administration (FDA) in 1970. While it has legitimate medical uses, it is also abused as a recreational drug. Ketamine abuse can lead to physical and psychological consequences, especially with frequent or long-term use. Liquid ketamine is typically mixed into drinks or injected, while powdered ketamine is usually snorted or smoked.
According to the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), signs of a ketamine use disorder can include taking increasingly larger amounts of the drug, spending a considerable amount of time obtaining, using, and recovering from the drug, and experiencing ongoing desire or unsuccessful efforts to decrease use. People who abuse ketamine often report that the short-lasting, highly euphoric effects and its role in facilitating social interactions make it difficult to stop using.
Treatment for ketamine abuse typically involves a combination of behavioral therapeutic approaches and other psychosocial interventions. It is important that treatment options are tailored to the individual to ensure the best chance of success.
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Ketamine and depression
While ketamine is a powerful anesthetic, it has also been used to treat acute and chronic pain and depression. Ketamine is generally used only when other, more longstanding treatments haven't been effective. It is important to note that ketamine is not a cure for depression, but it can improve symptoms for a certain amount of time.
Ketamine has been found to be effective in treating severe depression, especially in cases where individuals have not found relief with other treatments. It is considered safe for those with suicidal ideation. A study called Bio-K found that 52% of participants saw their severe depression ease so much that they achieved remission after just three infusions of ketamine over 11 days. Additionally, half of those who had frequent suicidal thoughts before receiving ketamine experienced a dramatic drop in those impulses.
Ketamine targets a different system in the brain than typical antidepressants, which may explain its effectiveness in patients who have not had success with different standard antidepressants. It is believed that ketamine allows for the regrowth of synapses (connections between neurons), which may lead to changes in thinking and responding to social or environmental stimuli.
However, it is important to note that ketamine can have side effects, including dissociation, intoxication, sedation, high blood pressure, dizziness, headache, blurred vision, anxiety, nausea, and vomiting. It is also important to use caution when considering ketamine for individuals with a history of psychosis or schizophrenia, as there is concern that the dissociation ketamine produces can worsen psychotic disorders. Additionally, with repeated dosing, ketamine may lose its effectiveness, requiring larger doses to produce the same effect, which is not sustainable.
Overall, while ketamine has shown promise in treating severe depression, particularly in cases resistant to other treatments, it is not without its risks and side effects. More research is needed to fully understand its long-term effectiveness and the best methods of administration.
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Ketamine and surgery
Ketamine is a powerful anesthetic that is used for a wide variety of clinical applications. It was introduced commercially in 1970 as a "rapidly acting, nonbarbiturate general anesthetic". It is used in major and minor surgeries, including abdominal operations, orthopedic procedures, surgical burn treatment, and dental procedures.
Ketamine is often used alongside other anesthetics to avoid high doses of individual medications, which can have adverse effects. It is one of the faster-acting and shorter-duration anesthetics, with effects wearing off within 15 to 20 minutes. It is also used to treat acute and chronic pain and depression.
Ketamine has been found to have beneficial effects when co-administered with fentanyl and propofol anesthesia for orthopedic surgery, exhibiting potent rapid antidepressant-like properties that improve the postoperative state of depressed patients. It is also used to prevent post-anesthesia shivering.
However, there are some downsides to ketamine administration during surgery. It is known to cause side effects that negatively affect mental status, such as hallucinations, vivid dreams, out-of-body experiences, and unusual thoughts or behaviors. These side effects may occur when patients are falling asleep or after they wake up, and they can be long-lasting. Ketamine may also cause confusion, agitation, and an inability to recognize friends and family members, which can result in longer hospital stays and an increased risk of long-term cognitive decline.
Despite these potential side effects, ketamine has been associated with high levels of satisfaction after surgery, possibly due to a reduction in post-operative pain.
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