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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.
Illicit drug use costs the United States approximately $181 billion every year.
The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").
Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.