Table 1. Pharmacological Options for Akathisia2,7.
Class | Drug | Mechanism of action |
Dose (mg/d) | Clinical Recommendations for antipsychotic- induced akathisia |
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Beta-Blockers | Propranolol | non-selective beta blockade | 20–120 | First-line adjunctive medication treatment | ||||
Benzodiazepine | Clonazepam | agonist action at GABA-A receptors | 0.5–2 | Consider for short term treatment | ||||
Anti-cholinergics | Benztropine/Biperiden | antagonizes acetylcholine | Benztropine (1.5–8) Biperiden (2–6) |
May help mild subjective symptoms with concurrent parkinsonian symptoms; not routinely recommended | ||||
Central alpha agonist | Clonidine | stimulates alpha-2 adrenergic receptors | 0.2–0.8 | Limited evidence supports treatment | ||||
Tricycyclic/Tetracyclic antidepressant | Mirtazapine | antagonizes alpha-2 adrenergic and serotonin 5HT2A receptors | 15 | Considered as first-line treatment when propranolol is contraindicated, ineffective, intolerable |
Other pharmacological options2: Mianserin, trazodone, cyproheptadine, Vit B6, amantadine, gabapentin, and pregabalin have been examined with insufficient evidence.