Doxycycline-induced idiopathic intracranial hypertension in a patient with Lyme disease.

Doxycycline is widely used to treat early and disseminated Lyme disease. Idiopathic intracranial hypertension (IIH), also known as pseudotumor cerebri, is a rare but serious adverse reaction to this medication. This article reviews the pathophysiology, presentation, diagnosis, and treatment of a patient with disseminated Lyme disease complicated by doxycycline-induced IIH.