Pharmaceutical relates to medicines and drugs used to treat illnesses or improve health. A pharmaceutical company is a business that researches, develops, and manufactures medications like antibiotics, pain relievers, or vaccines. The word can be used as an adjective (pharmaceutical research) or as a noun: scientists working in pharmaceuticals are developing new medicines to help people.

When you take a pill for a headache or receive a vaccine at the doctor's office, you're using pharmaceutical products. These medicines go through years of careful testing to make sure they're safe and actually work. Pharmaceutical scientists might spend a decade developing a single new drug, testing it first in laboratories, then in animals, and finally in carefully monitored human trials.

Today's pharmaceutical industry is vastly more sophisticated than the old-time pharmacist mixing remedies behind a counter, but the goal remains the same: creating substances that heal, prevent disease, or ease suffering.

You might hear about the pharmaceutical industry in the news when a breakthrough medication is discovered or when people debate the cost of medicines.