17 terms

Medicines & Tobacco

Unit 3 Key Words
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Drug
A chemical substance that changes a person's mind or body with no nutritional value.
Prescription Medicine
Medicine that needs a written order from a doctor
Over-the-counter medicines (OTC)
Any medicine that can be bought without a prescription
Behind-the-counter medicines (BTC)
A third class of medicines that pharmacists dispense generic prescription medicines with no doctor's order
Side effect
Reactions to medicine other than the one intended, for example nausea, dizziness, headaches.
Drug Addiction
A physical or psychological need for higher and higher doses of a drug despite the negative consequences.
Physical Dependence
A state in which the body relies on a given drug in order to function.
Psychological dependence
A emotional and mental desire to use a drug in order to function.
Tobacco
A plant that contains nicotine used to make cigarettes.
Nicotine
Addictive drug found in tobacco leaves.
Carbon Monoxide
A colorless, odorless, poisonous gas in cigarette smoke that passes through the lungs into the blood.
Tar
A gooey chemical that can coat the airways and cause cancer.
Environmental tobacco smoke (ETS)
Smoke from tobacco products, including secondhand and mainstream smoke.
Cancer
A malignant growth or tumor caused by abnormal, uncontrolled cell division.
Chronic bronchitis
An irritation of the breathing passages where they become clogged with mucus
Emphysema
A serious disease that destroys lung tissue and causes breathing difficulties.
Tolerance
A process in which your body needs more and more of a drug to get the same effect