Ketamine Hydrochloride 100 mg/mL (Ketamine Hydrochloride INJECTION, SOLUTION, CONCENTRATE) 100 mg/mL

Ketamine Hydrochloride acts on the NMDA receptor pathway, providing dissociative anesthesia and analgesia. It is used for:

• Anesthesia: Induction and maintenance of general anesthesia for surgical procedures.
• Sedation: Providing sedation in critical care settings.
• Analgesia: Managing acute pain in medical and surgical contexts.
• Treatment-resistant depression (off-label): Used in clinical settings for patients who do not respond to standard antidepressants.

• Ketamine Hydrochloride works by antagonizing the NMDA (N-methyl-D-aspartate) receptors in the central nervous system. This action results in dissociative anesthesia, characterized by profound analgesia, normal pharyngeal-laryngeal reflexes, and minimal respiratory depression. The drug's rapid onset and short duration make it suitable for various medical procedures.

Ketamine Hydrochloride can cause several side effects, ranging from common to serious or rare.

Common Side Effects

• Nausea and vomiting
• Dizziness and confusion
• Increased heart rate and blood pressure
• Hallucinations and vivid dreams
• Blurred vision
• Increased salivation

Serious or Rare Side Effects

• Respiratory depression
• Increased intracranial pressure
• Psychiatric symptoms, including agitation and delirium
• Bladder dysfunction, including urinary incontinence and blood in urine
• Cardiovascular complications, such as hypertension and tachycardia

Ketamine Hydrochloride should be used with caution and under medical supervision. Key precautions include:

• Cardiovascular conditions: Monitor patients with heart disease closely due to potential increases in heart rate and blood pressure.
• Psychiatric history: Use with caution in patients with a history of psychiatric disorders due to the risk of hallucinations and delirium.
• Increased intracranial pressure: Avoid in patients with head injuries or increased intracranial pressure.
• Pregnancy and breastfeeding: Consult healthcare providers regarding the risks and benefits during pregnancy and breastfeeding.
• Store at 20–25°C (68–77°F): Protect from light and keep in a secure, controlled environment.

Ketamine Hydrochloride can interact with other medications, potentially altering its effects or increasing the risk of side effects.

Major Interactions (Avoid)

• Monoamine oxidase inhibitors (MAOIs): Can lead to severe hypertensive crises.
• Stimulants: May exacerbate cardiovascular effects, such as increased heart rate and blood pressure.
• Anticholinergics: Can enhance the risk of hallucinations and delirium.

Moderate Interactions (Monitor Closely)

• Benzodiazepines: May reduce the anesthetic and analgesic effects of ketamine.
• Opioids: Can enhance respiratory depression and sedation.
• Antidepressants: May increase the risk of serotonin syndrome.