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Valproic acid and Stevens-Johnson syndrome: a systematic review of descriptive studies.

Muhammed RashidAnanth KashyapKrishna Undela
Published in: International journal of dermatology (2019)
Valproic acid (VPA) is a commonly used antiepileptic drug (AED). Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis are the rare but fatal cutaneous adverse drug reactions for VPA. We aimed to identify and critically evaluate all the literature of SJS in association with VPA and to describe the clinical features of the condition. A literature search was conducted in MEDLINE/PubMed from inception to December 2017 and updated in July 2018 without any restrictions, and the references of included studies were also searched. The descriptive studies discussing any patients who experienced SJS followed by the use of VPA alone or along with any other AED for its main indication were included. Two authors were independently involved in the study selection and data extraction. Disagreements were resolved by consensus or by the discussion with a third reviewer. A total of 19 studies including 17 case reports and two case series of 98 were included in the review. In all studies, the dose of VPA ranged from 100 mg/day to a maximum dose of 1,000 mg/day and was administered for indications including epilepsy, seizures, schizophrenic affective disorders, and bipolar disorder. The mortality seen with severe cutaneous adverse drug reactions can be decreased by immediate withdrawal of opposing medications, providing symptomatic relief, and offering supportive care, all of which are the mainstay of controlling the condition. It is essential for healthcare professionals to be aware of the importance of monitoring SJS or any other cutaneous reactions followed by the use of valproic acid even though the incidence is low, but it is injurious to the patient.
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