Pharmacists distribute drugs prescribed by physicians and other health practitioners and provide information to patients about medications and their use. They advise physicians and other health practitioners on the selection, dosages, interactions, and side effects of medications. Pharmacists also monitor the health and progress of patients in response to drug therapy to ensure the safe and effective use of medication. Pharmacists must understand the use, clinical effects, and composition of drugs, including their chemical, biological, and physical properties. Top Pharmacy programs use curriculum from Biology, Chemistry, Business, Technology and others. Pharmacy is very popular with students who enjoy working both in the life sciences, and directly with the public.