A client recently diagnosed with generalized anxiety disorder is prescribed clonazepam

(Klonopin), buspirone (BuSpar), and citalopram (Celexa). Which assessment related to

the concurrent use of these medications is most important?

Generalized anxiety disorderis a chronic psychiatric condition marked by excessive worry, muscle tension, and autonomic hyperarousal. According to DSM-5, symptoms must persist for at least six months and include difficulty controlling worry, restlessness, fatigue, irritability, sleep disturbance, and somatic complaints. Feeling “keyed up” or “on edge” reflects persistent sympathetic activation. Muscle tension is a hallmark physical symptom. Hypersomnia and excessive energy are not typical features and may suggest alternative diagnoses like depression or bipolar disorder.

Rationale for correct answers

1. Excessive worryis the core diagnostic feature of generalized anxiety disorder. It must be present most days for at least six months and be difficult to control.

2. Muscle tensionis one of the six DSM-5 physical symptoms used to validate the diagnosis. It reflects chronic somatic arousal and is commonly reported.

5. Feeling “keyed up”or “on edge” indicates autonomic hyperactivity and is part of the DSM-5 criteria. It reflects the persistent restlessness and arousal seen in GAD.

Rationale for incorrect answers

3.Hypersomniais more characteristic of depressive disorders. GAD typically presents with insomnia or restless, unsatisfying sleep.

4.Excessive energyis not a symptom of GAD. It may suggest manic or hypomanic episodes seen in bipolar spectrum disorders.

Take Home Points

• Generalized anxiety disorder requires excessive, uncontrollable worry lasting at least six months.
• DSM-5 criteria include restlessness, fatigue, irritability, muscle tension, sleep disturbance, and difficulty concentrating.
• Feeling “keyed up” and muscle tension are hallmark signs of autonomic arousal in GAD.

Concurrent use of serotonergic agentslike clonazepam, buspirone, and citalopramrequires careful monitoring due to additive central nervous system and serotonergic effects. Clonazepam is a benzodiazepine with sedative and anxiolytic properties. Buspirone is a non-benzodiazepine anxiolytic that modulates serotonin and dopamine receptors. Citalopram is a selective serotonin reuptake inhibitor (SSRI) used for depression and anxiety. When combined, these drugs may increase the risk of serotonin syndrome, CNS depression, and altered mental status. Symptoms may include tremor, diaphoresis, tachycardia, and confusion. Monitoring is essential, especially during initiation or dosage changes.

Rationale for correct answers

2.The combination of citalopram and buspirone increases serotonergic activity, while clonazepam adds CNS depressant effects. This triad can lead to serotonin syndromeand autonomic instability, making it critical to monitor for tremor, diaphoresis, tachycardia, and mental status changes.

Rationale for incorrect answers

1.While worsening depression and suicidal ideation are concerns with SSRIs like citalopram, this is not the most immediate risk when combined with buspirone and clonazepam. The primary concern is serotonin syndromeand CNS effects.

3.Hyperpyrexia, dystonia, and rigidity are more characteristic of neuroleptic malignant syndrome, typically associated with antipsychotics, not the medications listed.

4.Facial spasms and bizarre movements suggest extrapyramidal symptomsor tardive dyskinesia, which are not common with SSRIs, buspirone, or benzodiazepines.

Take Home Points

• Combining SSRIs, buspirone, and benzodiazepines increases risk of serotonin syndrome and CNS depression.
• Serotonin syndrome presents with tremor, tachycardia, diaphoresis, and altered mental status.
• Neuroleptic malignant syndrome and extrapyramidal symptoms are not typical risks with these agents.
• Close monitoring is essential during initiation or dose changes of serotonergic and CNS depressant drugs.