Pharmaceutical companies are businesses that research, develop, and produce medications to help treat various health conditions. They play a crucial role in the healthcare system by creating drugs that can improve or save lives. These companies often work closely with scientists and medical professionals to ensure their products are safe and effective for patients. In addition to making medications, pharmaceutical companies also conduct clinical trials to test new drugs before they are approved for public use. This process helps ensure that the medications meet safety standards set by organizations like the Food and Drug Administration (FDA). Overall, these companies contribute significantly to advancements in medicine and public health.