In a world racing to keep pace with superbugs and antibiotic resistance, an old hero is making a powerful return —  Penicillin . Once the poster child of antibiotic revolution, this age-old drug is now witnessing a surprising resurgence in demand. According to a recent  Penicillin Drug Market  research report by Market Research Future, the global market for penicillin drugs is projected to see impressive growth through the coming decade — and the reasons are as fascinating as the medicine itself.