Dr. Keith A. Marcus draws Allergan Inc. Botox into a syringe before administering it to a patient at the offices of Marcus Facial Plastic Surgery in Redondo Beach, California, U.S., on Tuesday, April 22, 2014. Valeant Pharmaceuticals International Inc. offered to buy Allergan Inc., maker of the Botox wrinkle treatment, in a cash-and-stock deal valued at $45.7 billion in the latest step of the Canadian company’s plan to become one of the world’s largest drugmakers. Photographer: Patrick T. Fallon/Bloomberg via Getty Images