Panic Disorder

vs. Isolated panic attacks (without panic disorder)

Panic attacks are a symptom that can occur in many conditions (depression, PTSD, social anxiety, generalized anxiety, medical conditions). Panic DISORDER requires the attacks PLUS persistent worry or behavior change for at least one month. Many patients have panic attacks without ever developing panic disorder.

vs. Agoraphobia

Coded separately in DSM-5-TR (300.22, F40.00). Agoraphobia is fear of two or more agoraphobic situations (public transport, open spaces, enclosed spaces, crowds, being outside home alone). Co-occurs frequently with panic disorder. Either can exist without the other in DSM-5-TR (this is a change from DSM-IV where agoraphobia was always specified relative to panic).

vs. Generalized anxiety disorder (GAD)

GAD is chronic excessive worry across multiple domains; panic disorder centers on recurrent discrete attacks. Many patients have both. Distinguishing matters for treatment selection — GAD responds to longer-acting interventions (SSRIs, gabapentinoids, mindfulness-based therapy); panic disorder responds to panic-specific CBT with interoceptive exposure.

vs. Cardiac / pulmonary medical conditions

Always rule out treatable medical causes before panic disorder diagnosis: hyperthyroidism, pheochromocytoma, supraventricular tachycardia, pulmonary embolism, mitral valve prolapse, vestibular disorders. First-presentation panic-like symptoms typically warrant ECG, TSH, and clinical exam minimum. Many patients arrive at psychiatry after multiple normal ER workups for chest pain or dyspnea.

SSRIs (paroxetine, sertraline, escitalopram, fluoxetine)

First-line pharmacotherapy with the strongest evidence base. Paroxetine and sertraline have specific FDA approval. Start at half the usual antidepressant starting dose because of initial activation that can mimic panic symptoms and undermine adherence. Onset of antipanic effect 4-8 weeks; full benefit at 12 weeks. Response rates approximately 60-70%; remission rates 40-50%.

SNRIs (venlafaxine XR)

Venlafaxine XR has FDA approval and trial evidence comparable to SSRIs. Useful when SSRI trials fail. Same start-low principle (37.5mg, not 75mg, to avoid early activation). BP monitoring at doses ≥150mg.

Panic-focused CBT with interoceptive exposure

The gold-standard psychotherapy. Mechanism: deliberate induction of panic-like sensations (hyperventilation, spinning, breath holding, stair climbing) within session and across homework exposures, with cognitive restructuring of catastrophic interpretations (palpitations don't mean heart attack; dizziness doesn't mean stroke). Treatment course typically 12-16 sessions. Effect sizes large; durability after treatment completion often exceeds medication-only outcomes.

Benzodiazepines (clonazepam, alprazolam)

Effective but generally avoided as monotherapy because of dependence, rebound anxiety on discontinuation, and the high comorbidity with substance use. Limited roles: short-term bridge while SSRI takes effect (4-6 weeks), or as adjunctive PRN for breakthrough attacks during otherwise stable maintenance. Avoid daily long-term use when possible.

Tricyclic antidepressants (clomipramine, imipramine)

Older first-line agents, displaced by SSRIs for tolerability but still effective. Reasonable third-line option after SSRI/SNRI failure. Anticholinergic side effects (dry mouth, constipation, urinary retention, sedation) and cardiac considerations limit use; ECG before and during therapy is standard.

Acceptance and Commitment Therapy (ACT)

Effective alternative or sequential option for CBT non-responders. Shifts focus from preventing panic to acting in alignment with values despite panic sensations. Often more accessible for patients exhausted by CBT-style symptom-management approaches.

MAOIs (phenelzine) — historical / specialty

Older agents with strong antipanic effect, but tyramine-restricted diet and drug interaction profile makes MAOIs a specialty-care option only. Reserve for patients who have failed multiple first-line and second-line trials and are under psychiatric care that can manage the dietary and drug-interaction monitoring.

Is having panic attacks the same as having panic disorder?

No. Panic attacks are a symptom that can occur in many conditions or in isolation. Panic DISORDER requires recurrent unexpected attacks PLUS one month or more of persistent worry about more attacks or significant behavior change. Many people have isolated panic attacks without ever developing the disorder.

Why do my panic attacks feel like a heart attack?

The symptoms overlap significantly — palpitations, chest pain, shortness of breath, sweating, dizziness, fear of dying. The medical workup (ECG, exam, sometimes echocardiogram) is important to do once to rule out cardiac causes. Once cleared, the work shifts to learning to recognize the sensations as anxiety rather than cardiac danger — this cognitive shift is itself part of treatment.

Will I have to be on medication forever?

Not necessarily. Current guidelines recommend continuing SSRIs for 6-12 months after symptom remission, then considering taper if symptoms remain stable. Many patients eventually discontinue. CBT gains tend to be durable independent of medication, which is one reason for combined treatment.

Can ketamine help my panic disorder?

The evidence base in panic disorder specifically is small but supportive — broader anxiolytic effects have been documented but no panic-specific RCT has been done. Ketamine is more reasonably considered when panic disorder coexists with treatment-resistant depression, or after adequate trials of first-line treatments have failed. Some patients also report that dissociative phenomenology of ketamine sessions, when prepared for in advance, helps recontextualize panic sensations themselves.

What if I have a panic attack during a ketamine session?

The dissociative state of ketamine can feel similar to derealization or depersonalization symptoms that occur in panic; some patients initially experience this as panic-like. Tovani's screening and preparation specifically addresses this for patients with panic history. Patients can also use grounding techniques before and after sessions, and the physician adjusts dose downward for patients more prone to this phenomenology.