Ativan Should NOT Be Used for Pseudoseizures
Lorazepam (Ativan) is indicated for true epileptic seizures, not pseudoseizures (psychogenic non-epileptic seizures). Administering benzodiazepines to patients with pseudoseizures provides no therapeutic benefit, exposes patients to unnecessary risks including respiratory depression and sedation, and may reinforce illness behavior while delaying appropriate psychiatric treatment.
Understanding the Critical Distinction
Pseudoseizures, more appropriately termed psychogenic non-epileptic seizures (PNES), are paroxysmal events that resemble epileptic seizures but lack the abnormal electrical brain activity that characterizes true seizures. The 2014 ACEP guidelines explicitly acknowledge this diagnostic challenge, noting that "a variety of clinical conditions may lead to events that resemble convulsive seizures but in fact are not," including psychogenic nonepileptic seizures 1.
Why Benzodiazepines Are Inappropriate for PNES
No physiological mechanism of action: Benzodiazepines work by enhancing GABA activity to suppress excessive synchronous cortical electrical activity 2. Since PNES lacks this electrical activity, there is no biological substrate for lorazepam to act upon.
Iatrogenic harm: Lorazepam carries significant risks including respiratory depression (requiring immediate airway management equipment per FDA labeling 3), sedation, paradoxical agitation (10% in adults, 10-30% in pediatric patients) 3, and vital instability. Recent evidence demonstrates that even in true seizures lasting <5 minutes, lorazepam administration significantly increases vital instability (OR = 6.76) and ICU length of stay 4.
Reinforcement of maladaptive behavior: Administering medication for PNES may inadvertently validate and reinforce the seizure-like behavior, making psychiatric treatment more difficult.
The Correct Approach to PNES
The appropriate treatment for PNES is psychological intervention, specifically cognitive behavioral therapy (CBT), not pharmacological management. The WHO guidelines explicitly recommend "psychological treatment based on CBT principles should be considered in repeat adult help seekers with medically unexplained somatic complaints who are in substantial distress" 2. This directly applies to PNES, which falls under the category of medically unexplained neurological symptoms.
Clinical Algorithm for Management
Establish the diagnosis: Video-EEG monitoring is the gold standard for distinguishing PNES from epileptic seizures. Clinical features suggestive of PNES include prolonged duration (>2 minutes), gradual onset, side-to-side head movements, pelvic thrusting, eye closure during events, and lack of postictal confusion.
Avoid benzodiazepine administration: Do not give lorazepam or other benzodiazepines during suspected PNES events.
Provide supportive care: Ensure patient safety during the event without physical restraint. Allow the episode to resolve spontaneously.
Refer for psychiatric evaluation: Arrange consultation with psychiatry or psychology for CBT-based interventions, which are the evidence-based treatment for PNES 2.
Address comorbidities: Screen for and treat underlying depression, anxiety, PTSD, or history of trauma, which commonly coexist with PNES.
Critical Pitfalls to Avoid
The most dangerous pitfall is misdiagnosing true status epilepticus as PNES, which would result in withholding life-saving benzodiazepine therapy. When diagnostic uncertainty exists in an acute setting:
If the patient has known epilepsy or the clinical presentation strongly suggests true seizures, treat as status epilepticus with IV lorazepam (4 mg for adults, preferred over diazepam) 2, 5.
If PNES is suspected but cannot be confirmed, prioritize patient safety by treating as true seizures until video-EEG can clarify the diagnosis.
The FDA-approved indication for lorazepam in status epilepticus is clear: 4 mg IV given slowly (2 mg/min), with repeat dosing after 10-15 minutes if seizures continue 3. This applies only to true epileptic seizures.
The converse error—treating confirmed PNES with benzodiazepines—causes harm without benefit and should be avoided once the diagnosis is established.