How Caffeine Helps Relieve Pain

by Leigh Ann Otte

Ever had a pain medicine keep you up at night? Maybe that’s because it contained caffeine.

Sometimes when you have a headache, it’s caused by swollen blood vessels pressing on nerves. Caffeine shrinks blood vessels. That’s part of why certain medicines, like Anacin and Excedrin, have caffeine. Pharmacist Daniel P. Hays explains more in this week’s featured article, “Why Is Caffeine in My Pain Reliever?”

Do you take pain relievers with caffeine? Why or why not?

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Leigh Ann Otte is the managing editor of

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