May 14 (UPI) -- Migraines don't just cause headaches. These attacks often are accompanied by symptoms like light and sound sensitivity, nausea, neck pain and dizziness.

What's more, those non-headache symptoms tend to crop up before a full-fledged migraine headache takes root.

But now, researchers say they've discovered an already approved migraine drug that can stop these other symptoms hours before a headache starts.

Ubrogepant successfully warded off early migraine symptoms in patients who took the drug one to six hours before a headache, causing a 72% increased likelihood a person wouldn't experience light sensitivity and an 85% increased likelihood they wouldn't have fatigue.

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