Possible Clues:

• Pain reliever since 1916
• Its website includes a Headache Center
• Painkiller containing caffeine
• Pain relief brand with early 'hammers in the head' ads
• Aleve shelfmate
• ''Feel Better Fast'' sloganeer
• Product with the old catchphrase 'Mother, please, I'd rather do it myself!'
• Pain reliever containing aspirin and caffeine
• Over-the-counter pain reliever
• Caffeinated painkiller brand