Ketamine (Calyperol,calypsol,Dekat,Kanox)
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| Ketamine |
Ketamine is a medication that is used for a variety of purposes, including as an anesthetic and as a treatment for chronic pain. It is a nonbarbiturate anesthetic that is structurally related to the phencyclidine (PCP) class of drugs.
Pharmacodynamics:
Ketamine works by inhibiting the transmission of pain signals in the central nervous system (CNS). It does this by blocking NMDA receptors, which are involved in the transmission of pain signals and the regulation of memory and learning. In addition to its pain-relieving effects, ketamine also has a range of other effects on the CNS, including sedation, agitation, and hallucinations.Ketamine was found on autopsy of american player Dwayne Haskin
Pharmacokinetics:
Ketamine is rapidly absorbed after oral, intramuscular, or intravenous administration. It has a half-life of approximately 2-3 hours and is metabolized in the liver. It is excreted in the urine, primarily as its metabolites.
Indications:
Ketamine is used for a variety of indications, including:
Anesthesia: Ketamine is commonly used as an anesthetic for surgical procedures, particularly in children and in patients with cardiovascular or respiratory diseases who may not be able to tolerate other anesthetic agents.
Pain management: ketamine is sometimes used as a treatment for chronic pain, particularly in patients with neuropathic pain or who have not responded to other pain medications.
Depression: recent research has suggested that ketamine may be effective in the treatment of treatment-resistant depression, and it is sometimes used off-label for this indication.
Dosage:
The dosage of ketamine varies depending on the indication and the route of administration. For anesthesia, the usual dose is 1-2 mg/kg given intravenously or intramuscularly. For pain management, the usual dose is 0.5-2 mg/kg given intravenously or intramuscularly, repeated every 6-8 hours as needed.
Contraindications:
Ketamine is contraindicated in patients with a history of hypersensitivity to the drug, as well as in patients with active psychosis. It should also be used with caution in patients with a history of substance abuse, as it has the potential for abuse and dependence.
Adverse effects:
The most common adverse effects of ketamine include sedation, dizziness, and nausea. Other possible adverse effects include hallucinations, agitation, and respiratory depression. Ketamine can also cause an increase in blood pressure and heart rate.
Drug interactions:
Ketamine may interact with a number of other medications, including sedatives, opioids, and antidepressants. It is important to inform your healthcare provider of all medications you are taking before starting treatment with ketamine.
Overdose:
An overdose of ketamine can cause serious adverse effects, including hallucinations, agitation, respiratory depression, and coma. Treatment of a ketamine overdose may include supportive care, such as airway management and monitoring of vital signs, as well as medications to reverse the effects of the drug.
Conclusion:
Ketamine is a medication that is used for a variety of purposes, including as an anesthetic and as a treatment for chronic pain. It works by inhibiting the transmission of pain signals in the CNS and has a range of other effects on the CNS, including sedation, agitation, and hallucinations. The dosage and administration of ketamine varies depending on the indication, and it can cause a number of adverse effects, including sedation, dizziness, and nausea. It is important to inform your healthcare provider of all medications you are taking before starting treatment with ketamine
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