SEDATIVE:a drug used to calm a person or animal or to make them sleep
DROWSINESS:being in a state between sleeping and being awake
1.Epidemic:the appearance of a particular disease in a large number of people at the same time
Contagiousness: a contagious disease can be caught by touching someone who has the disease or a piece of infected clothing
2.Vaccine:a substance containing a virus or bacterium in a form that is not harmful, given to a person or animal to prevent them from getting the disease that the virus or bacterium causes
Virus:an extremely small piece of organic material that causes disease in humans,animal and plants.
3.Laxative:a substance that makes it easier for the waste from someone's bowels to come out
Drug:any natural or artificailly made chemical that is used as a medicine
4.Anesthetic:a drug that makes the body unable to feel pain
Numbness:if a part of your body is numb, you are unable to feel it,usually for a shortime
5.Therapy:a treatment that helps someone feel better , grow stronger, etc. especially after an illness
Psychosis:any of a number of the more severe mental diseases that make someone believe things that are not real
The answer would be 4. Anesthetic, Numbness.