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Table 14 Strength of evidence for pharmacotherapy for panic disorder

From: Canadian clinical practice guidelines for the management of anxiety, posttraumatic stress and obsessive-compulsive disorders

Agent

Level of evidence

Agent

Level of evidence

Antidepressants

SSRIs

 

TCAs

 

Citalopram [198–200]

1

Clomipramine [199, 211, 213, 232, 233]

1

Fluoxetine [201–204]

1

Imipramine [207, 224, 233–240]

1

Fluvoxamine [195, 205–210]

1

MAOIs and RIMAs

 

Paroxetine [211–219]

1

Phenelzine [240]

2

Sertraline [183, 220–224]

1

Moclobemide [204, 232, 241, 242]

1*

Escitalopram [198]

2

Tranylcypromine [243]

3

Paroxetine CR [225]

2

Other antidepressants

 

SNRIs

 

Reboxetine [200, 219, 244]

1

Venlafaxine XR [215, 216, 227–229]

1

Mirtazapine [203, 245, 246]

2

Duloxetine [230]

3

Bupropion SR [247, 248]

3*

Milnacipran [231]

3

  

Other therapies

Anxiolytics

 

Atypical antipsychotics

 

    Benzodiazepines

 

Risperidone [217, 267]

2

      Alprazolam [234, 249–254]

1

Olanzapine [268]

3

      Clonazepam [218, 250, 255–258]

1

Quetiapine [267]

3

      Lorazepam [251, 259, 260]

1

Adjunctive aripiprazole [269]

3

      Diazepam [261–263]

1

Adjunctive olanzapine [270]

3

      Adjunctive clonazepam [264, 265]

1

Adjunctive risperidone [271]

3

      Adjunctive alprazolam ODT [266]

3

Anticonvulsants

 

Other treatments

 

Divalproex [272–275]

3

Buspirone [254, 282]

1 (-ve)

Levetiracetam [276]

3

Trazodone [283]

2 (-ve)

Gabapentin [277]

2 (-ve)†

Propranolol [262, 284, 285]

2 (-ve)

Tiagabine [278, 279]

2 (-ve)

Adjunctive pindolol [286]

2

Carbamazepine [280]

3 (-ve)

  

Adjunctive divalproex [281]

3

  1. *Conflicting data. †No significant superiority over placebo in overall population, but significant benefits in subgroup of more severely ill patients. CR = controlled release; MAOI = monoamine oxidase inhibitor; ODT = orally disintegrating tablets; RIMA = reversible inhibitor of monoamine oxidase A; SNRI = serotonin–norepinephrine reuptake inhibitor; SR = sustained release; SSRI = selective serotonin reuptake inhibitor; TCA = tricyclic antidepressant; XR = extended release; (-ve) = negative.