Name three drug classes commonly used for anxiolysis/traumatic sedation in Fear Free premedication.

• A. Benzodiazepines, alpha-2 agonists, and phenothiazines.
• B. Opioids, NSAIDs, and steroids.
• C. Local anesthetics, anticonvulsants, and antihistamines.
• D. Ketamine, propofol, and inhaled anesthetics.

Answer: (A)

The key idea is using medications that reliably reduce fear and promote calm, cooperative behavior before a stressful procedure. The three drug classes most commonly used for anxiolysis and traumatic sedation in Fear Free premedication are benzodiazepines, alpha-2 agonists, and phenothiazines.

Benzodiazepines create a calming effect by enhancing GABA activity, which lowers anxiety and produces mild sedation and muscle relaxation. They’re useful when you want to reduce fear and improve handling without providing analgesia. Alpha-2 agonists, such as dexmedetomidine or xylazine, provide strong sedation and often some analgesia, making patients easier to manage, though they can affect heart rate and respiration and are reversible with specific antagonists. Phenothiazines, like acepromazine, offer tranquilization and antiemetic effects, contributing to a smoother, stress-free premedication, but they do not provide analgesia and can cause hypotension, so they’re chosen with patient status in mind.

Other options listed don’t fit as primary anxiolytic premeds: opioids and NSAIDs address analgesia and inflammation rather than reducing anxiety; local anesthetics, anticonvulsants, and antihistamines don’t provide reliable anxiolysis or sedation as a primary effect; and induction agents like ketamine, propofol, and inhaled anesthetics are used for deeper anesthesia rather than the initial, lighter sedation aimed at reducing fear during handling.

So, the best combination centers on benzodiazepines, alpha-2 agonists, and phenothiazines.