medicine

/ˈmed(ɪ).sn̩/noun

A drug or other substance taken to treat illness and help the body heal.

Example sentence

“Remember to take your medicine twice a day with food.”

Also the field of study: you practice medicine. 'A taste of your own medicine' means being treated as you treat others.

Related words

patientSomeone receiving medical treatment or care from a doctor, nurse, dentist, or other health professional.hospitalA building, often with many floors and departments, where doctors and nurses treat people who are seriously sick or hurt.headacheA pain felt in the head.nurseSomeone whose job is looking after people who are ill or injured.feverA body temperature that rises above normal, usually as a sign of illness.doctorA person with the training and license to treat people who are ill or hurt.