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Ranitidine is an H2 antihistamine used as an off-label therapy for recalcitrant verruca vulgaris. We describe a man who developed a sleep disturbance after initiating therapy with ranitidine and review similar adverse effects associated with other drugs in this class. The patient was a 40-year-old man with an eight-year history of a wart on his right plantar foot that was recalcitrant to several topical therapies. Adjunctive treatment with ranitidine 150 mg twice daily was initiated. He developed sleep disturbance with bizarre dreams and gastrointestinal symptoms. All symptoms resolved after discontinuation of the medication and recurred when he restarted the drug. PubMed was searched for the following terms: disturbance, dream, ranitidine, verruca, wart, and Zantac. The papers containing these terms and their references were reviewed. Sleep disturbance caused by ranitidine is an uncommon adverse event in patients receiving the drug. However, similar reactions have been observed with other H2 antihistamines such as cimetidine and famotidine. Clinicians should be aware that sleep disturbance secondary to ranitidine is a potential side effect of this medication.

Ranitidine-Associated Sleep Disturbance: Case Report and Review of H2 Antihistamine-Related Central Nervous System Adverse Effects