They are highly skilled healthcare professionals who supply medicines and medical devices to patients. They have a high level of expertise and are able to tackle difficult situations. Pharmacy technicians are experts in many fields; for example, medicines management, clinical trials and manufacturing aseptic medicines. Pharmacy technicians work in a variety of locations (usually in community, retail, and hospital pharmacies), but can also work for long-term care facilities, pharmaceutical manufacturers, third-party insurance companies, computer software companies, or in government or teaching. Job accountabilities include dispensing prescription drugs and other medical devices to patients and instructing on their use. They may also perform administrative duties in pharmaceutical practice, such as reviewing prescription requests with doctor's offices and insurance companies to ensure correct medications are provided and payment is received. Pharmacy technicians often take on the role of Compounding Supervisor, overseeing day to day sterile and non-sterile dose preparation while meeting standards required by regulatory bodies.