Question

The most useful classification of drugs for medicinal chemists is:
A.On the basis of chemical structure
B.On the basis of drug action
C.On the basis of molecular target
D.On the basis of pharmacological effect.

Answer 1

Hint: Drugs are defined as the chemical substance which is used in the treatment or diagnosis of disease which may be physical or mental disease. For example: quinine is used for the treatment of malaria.

Complete step by step solution:
Let us talk about drugs and their uses.
Drugs are defined as the chemical substance which is used in the treatment or diagnosis of disease which may be physical or mental disease. For example: quinine is used for the treatment of malaria.
Drug also refers to the illegal use of drugs. For example: use of tobacco drugs, use of cocaine drugs. They all are illegal drugs.
Examples of drug: Paracetamol: this is used for the treatment of fever and mild pain.
Aspirin: It is used by the patients of the heart (the people who are having heart problems i.e. heart attack). It generally reduced the ability of blood to clot and hence aspirin can be used for blood thinner.
Bithional: It is used as an antiseptic (which is defined as a liquid which prevents cuts from being infected). Example of antiseptic: when we have cut accidently then immediately we apply Dettol or savlon at that part of the body because they act as antiseptic. By applying the bacteria in the air will not attack that portion. Hence they will protect from being infected.
Antibacterial: They are defined as the chemical compounds which are used for destroying bacteria and curing infections.
There are generally four classification drugs: stimulants, depressants, painkillers and hallucinogens.
Stimulants: They are used as the speed up message drug between brain and body. By using these drugs people feel awake, confident.
Depressants: They are used to slow down the brain activity and make them useful for treating anxiety, panic.
Pain killers: They are used to reduce the pain. For example: morphine.
Hallucinogens: They are used to alter perception, feelings and thoughts which are not real but to the person it seems to be real.
Hence, the most useful classification of drugs for medicinal chemists is on the basis of molecular target.

So option C is correct.

Note:
Antibacteria: They are defined as the chemical compounds which are used for destroying bacteria and curing infections.
Antiseptic: It is defined as a liquid which prevents cuts from being infected.