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Galen College of Nursing NUR NSG 3130 | Pharmacology on the Drug Ketamine | 2026 Update

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Galen College of Nursing NUR NSG 3130 | Pharmacology on the Drug Ketamine | 2026 Update

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1




Ketamine




Armando Aguirre

Galen College of Nursing

PHM 2500 – Introduction to Pharmacology

Professor Andrew Krueger

December 4, 2024

, 2


Introduction to Ketamine

Ketamine is a dissociative anesthetic first introduced in the early 1960s. In short terms,

this drug creates this “dissociative” effect, which causes distortion to the patient’s memory.

Although its initial purpose was to be an anesthetic, this drug has shown to be more potent across

disciplines, demonstrating its precarious effects in treating pain and psychological disorders (Li

& Vlisides, 2016). Ketamine was primarily created to replace phencyclidine (PCP), revealing

that ketamine had better outcomes than PCP. As mentioned, ketamine’s primary indications span

from surgical to psychiatric settings, consisting of treatment-resistant depression (TRD), suicidal

ideation, analgesia, and even emergency sedation. There are a few ways that ketamine can be

administered, such as subcutaneous (SC), intravenous (IV), intramuscular (IM), or nasal routes.

It is more commonly known as Special K, super-acid, and others when mentioned in recreational

terms. In addition, “ketamine has the potential for a range of dangerous to deadly reactions, from

hallucinogenic effects, disorientation and impaired function to intestinal pain, toxicity and

cardiac arrest” (Crocker, 2022). In contempt of events such as these, the role that ketamine plays

in modern medicine progresses towards innovative advancements, especially in emergency and

psychiatric disciplines, where its rapid onset and versatile pharmacological profile are

recognized.

Treatment-resistant depression (TRD)

Treatment-resistant depression (TRD) is considered one of the major indications that is

used to treat drug ketamine. “Treatment-resistant depression (TRD) typically refers to inadequate

response to at least one antidepressant trial of adequate doses and duration (Fava, 2003). This

type of depression is classified under Major Depressive Disorder (MDD). MDD Many factors

play a role in the cause of MDD, such as age, gender, medications, physical health, and others.

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