Answer:
Medicines are chemicals or compounds used to cure, halt, or prevent disease; ease symptoms; or help in the diagnosis of illnesses. Advances in medicines have enabled doctors to cure many diseases and save lives. These days, medicines come from a variety of sources.
Step-by-step explanation:
Polio vaccine
Aspirin
Morphine
Smallpox vaccine
Insulin – 1922.
Penicillin – 1942.
Are all very important medicines