Pharmacists often work in a hospital or store setting filling prescriptions for their patients. They must have a solid grasp of how medications work, including; possible side-effects, dosage, and use. They will advise patients on the medications they take.
Most full-time pharmacists work at least 40 hours per week and spend much of that time on their feet. Many are expected to work some evenings and weekends in order to be available to staff pharmacies.