ArticleIndian journal of pharmaceutical education : official publication of Association of Pharmaceutical Teachers of India2026
Topiramate Versus Acetazolamide for Idiopathic Intracranial Hypertension. A Real-World Data-Based Multicenter Retrospective Study.
Article in Indian journal of pharmaceutical education : official publication of Association of Pharmaceutical Teachers of India, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Introduction: Idiopathic Intracranial Hypertension (IIH) is a condition marked by elevated intracranial pressure without mass lesions or hydrocephalus, primarily affecting young obese women. Acetazolamide has been the standard treatment, but its side effects often limit use. Topiramate, an anticonvulsant, has gained attention for its dual role as a carbonic anhydrase inhibitor and weight loss promoter. This study compares the efficacy and safety of topiramate versus acetazolamide in IIH management. Materials and Methods: This international, multicenter retrospective study analyzed electronic health records of IIH patients from 2009 to 2024 across six countries. Propensity score matching balanced baseline characteristics between groups, with outcomes evaluated over 24 months. Primary endpoints included papilledema resolution, headache control, visual outcomes and the incidence of refractory IIH and surgical interventions. Results: In a cohort of 16,654 propensity-matched patients (8,327 per group), topiramate significantly reduced persistent papilledema at 24 months (16.8% vs. 28.8%; Conclusion: Topiramate demonstrated superior efficacy compared to acetazolamide in resolving papilledema, controlling headaches and reducing the need for invasive procedures. It may represent a more effective first-line therapy for IIH. Further randomized trials are needed to validate these findings and optimize treatment protocols.
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