Clinical pharmacy is the branch of Pharmacy where pharmacists provide patient care that optimizes the use of medication and promotes health, wellness, and disease prevention. Clinical pharmacists work directly with physicians, other health professionals, and patients to ensure that the medications prescribed for patients contribute to the best possible health outcomes. Clinical pharmacists practice in health care settings where they have frequent and regular interactions with physicians and other health professionals, contributing to better coordination of care. Pharmacy practice is the discipline of pharmacy which involves developing the professional roles of pharmacists. Pharmacy assistants and dispensing assistants work alongside pharmacy technicians and under the supervision of a registered pharmacist in both hospital and community settings. Pharmacy care is the responsible provision of drug therapy for the purpose of achieving definite outcomes that improve a patient's quality of life. Online pharmacy is pharmacies that operate over the Internet and send the orders to customers through the mail or shipping companies. Clinical pharmacokinetics is the application of pharmacokinetic principles to the safe and effective therapeutic management of drugs in an individual patient.