MedlinePlus: Cephradine Injection: Provides information on usage, precautions, side effects and brand names when available. Data provided by various government agencies and health-related organizations.MedlinePlus: Cephradine Oral: Provides information on usage, precautions, side effects and brand names when available. Data provided by various government agencies and health-related organizations.Velosef: Full prescribing information from RxList.