Ans: Principle Usage of Important Medicinal Drugs
Drugs are classified on the basis of their chemical properties and modes of action. ,
• Analgesics (painkillers) reduce pain e.g. aspirin, paracetamol etc.
• Antibiotics inhibit or kill bacteria and treat bacterial infections e.g. tetracycline, cephalosporin etc.
• Sedatives induce sedation by reducing irritability or excitement e.g. diazepam.
• Vaccines are used to develop immunity against viral and bacterial infections e.g. vaccines against small pox, whooping cough, hepatitis B etc.
Q.8.Differentiate between antiseptics, antibiotics and disinfectants.
Ans: Antiseptics reduce the possibility of infections on skin.
Antibiotics inhibit or kill bacteria within or on the body.
Disinfectants destroy microorganisms found on non-living objects.