Withdrawal symptoms from phenytoin, carbamazepine and sodium valproate.
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A prospective, double-blind, placebo-controlled investigation of possible withdrawal symptoms from phenytoin, carbamazepine and sodium valproate is reported in patients with active epilepsy, on combination therapy. There was an increase in seizures on reduction and withdrawal of carbamazepine, but there was no convincing evidence of withdrawal symptoms from any of these drugs.
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Antipsychotics that are rapidly eliminated or rapidly dissociated from D2 receptors (e.g., clozapine, quetiapine) have greater risks of rebound when medication is decreased, switched, or discontinued.
“Antipsychotics rapidly eliminated or rapidly dissociated from the D2 receptors (i.e., clozapine, quetiapine) [161, 162] are known to have greater risks of rebound when medication is decreased, switched, or discontinued [13, 154, 156, 157, 163].”
From Acute and Persistent Withdrawal Syndromes Following Discontinuation of Psychotropic Medications (2020) · cites this paper as [156]
The Abstract and Discussion examine withdrawal of phenytoin, carbamazepine, and sodium valproate in patients with epilepsy; the Discussion reports no convincing withdrawal syndrome for those drugs. Searches for clozapine, quetiapine, D2 receptors, and rapid elimination found no passage addressing rebound risk from antipsychotics. (LLM, conf=0.78)
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Acute and Persistent Withdrawal Syndromes Following Discontinuation of Psychotropic Medications
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- Authors
- Duncan, J. S., Shorvon, S. D., & Trimble, M. R.
- Affiliations
- National Hospital for Neurology and Neurosurgery (GB)
- Venue
- Journal of Neurology, Neurosurgery & Psychiatry
- Publisher
- BMJ
- Published
- 1988-07-01
- Volume
- 51
- Issue
- 7
- Pages
- 924-928
- ISSN
- 0022-3050 (ISSN-L)
- PMC
- PMC1033195
- OpenAlex
- W2143699531
- Cited by
- 33
- References
- 49
- Citations by year
- 2026: 1 · 2024: 2 · 2023: 2 · 2020: 1 · 2019: 2 · 2016: 1 · 2015: 1
- FWCI
- 1.87
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Journal of Neurology Neurosurgery & Psychiatry (publishedVersion)
- Europe PMC (PubMed Central) (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- UCL Discovery (University College London) (submittedVersion)
- HighWire Press Open Archive (submittedVersion)
- Topics
- Health Sciences › Medicine › Psychiatry and Mental health › Epilepsy research and treatment
- Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Pharmacological Effects and Toxicity Studies
- Health Sciences › Medicine › Pharmacology › Drug-Induced Adverse Reactions
- Keywords
- drug withdrawal symptoms, phenytoin, carbamazepine, valproic acid, epilepsy, antiepileptic drugs, combination antiepileptic therapy, seizure recurrence, medication reduction
- MeSH terms
- Adolescent, Adult, Aged, Carbamazepine, Clinical Trials as Topic, Double-Blind Method, Drug Therapy, Combination, Epilepsy, Female, Humans, Male, Middle Aged, Phenytoin, Prospective Studies, Substance Withdrawal Syndrome, Valproic Acid
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