AKT-0480
A 26-year-old woman has a 2-year history of right-sided throbbing headache that comes and goes, accompanied by nausea and sensitivity to light. She often experiences visual disturbances before the headache starts. Despite trying various over-the-counter pain relievers, she has found little relief. Her doctor has prescribed an oral medication to be taken at the onset of the headache, with the option of taking another tablet after 2 hours if needed. What is a typical adverse effect of this medication?