evidence: Major Pfizer plant in North Carolina restarts production 10 weeks after tornado damage A major Pfizer pharmaceutical plant in North Carolina that makes critical supplies for U.S. hospitals has restarted production about 10 weeks after it was heavily damaged by a tornado, the company announced Monday. [...] Parts of the massive plant's roofs were ripped open and pallets of medicine tossed around when the tornado touched down on July 19. But most of the damage was to a storage facility for raw materials, packaging supplies and finished medicines, rather than its medicine production areas, Pfizer said. No employees were hurt.