Chemistry · Biology

Pharmacology and Therapeutics

1,643 Questions

Engage with critical pharmacology and therapeutics questions covering drug classifications and therapeutic mechanisms. Topics include chemical absorption, medication formulations, and pharmacogenomics. This collection is useful for students preparing for medical entrance, nursing, and science competitive examinations.

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Pharmacology and Therapeutics Questions

Multiple choice geography agriculture in india - iii : cash crops cash crops plantation of crops cash crops of india

Tobacco contains an intoxicating substance called ___________.

  1. Caffeine

  2. Tannin

  3. Nicotine

  4. Heroin
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

These cancer-causing chemicals are referred to as carcinogens. Some of the chemicals found in tobacco smoke include:· Nicotine (the addictive drug that produces the effect people are looking for and one of the harshest chemicals in tobacco smoke) Hydrogen cyanide. Formaldehyde

Multiple choice chemistry chemistry in daily life antimicrobials and antifertility drugs therapeutic action of different classes of drugs drugs and their classification

A drug which is effective in curing malaria is:

  1. aspirin.

  2. quinine.

  3. morphine.

  4. analgin.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • An antimicrobial tends to destroy/prevent development or inhibit the pathogenic action of microbes such as bacteria (antibacterial drugs), fungi (antifungal agents), virus (antiviral agents), or other parasites (antiparasitic drugs) selectively.
  • Malaria is a viral disease and caused by female anopheles mosquito. The drugs which are used to cure malaria are quinine,,Hydroxychloroquine Mefloquine etc.
Multiple choice chemistry chemistry in daily life antimicrobials and antifertility drugs therapeutic action of different classes of drugs drugs and their classification

Which of the following can be used as an analgesic without causing addiction?

  1. Morphine

  2. Aspirin

  3. Heroin

  4. Codeine
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Analgesics reduce or abolish pain without causing impairment of
consciousness, mental confusion, incoordination or paralysis or some
other disturbances of nervous system
Aspirin and paracetamol belong to the class of non-narcotic (non-addictive) analgesics. Aspirin inhibits the synthesis of chemicals known as prostaglandins which stimulate inflammation in the tissue and cause pain. These drugs are effective in relieving skeletal pain such as that due to arthritis. These drugs have many other effects such as reducing fever (antipyretic) and preventing platelet coagulation. Because of its anti blood clotting action, aspirin finds use in prevention of heart attacks.
Morphine,Heroin,Codeine belongs to narcotic(addictive) analgesics.
Multiple choice chemistry chemistry in daily life antimicrobials and antifertility drugs therapeutic action of different classes of drugs drugs and their classification

Which statement about aspirin is not true?

  1. Aspirin belongs to narcotic analgesics.

  2. It is effective in relieving pain.

  3. It has antiblood clotting action.

  4. It is neurologically active drug.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Aspirin belong to the class of non-narcotic analgesics. Aspirin inhibits the synthesis of chemicals known as prostaglandins which stimulate inflammation in the tissue and cause pain. It is effective in relieving skeletal pain such as that due to arthritis. It has many other effects such as reducing fever (antipyretic) and preventing platelet coagulation. Because of its anti blood clotting action, aspirin finds use in prevention of heart attacks. Aspirin is a neurologically active drug.
Multiple choice chemistry chemistry in daily life antimicrobials and antifertility drugs therapeutic action of different classes of drugs drugs and their classification

Among the following statements, which one is not correct?

  1. Aspirin is both an analgesic and an antipyretic.

  2. Ampicillin is a natural antibiotic.

  3. Sulphadiazine is a synthetic antibacterial.

  4. Some disinfectants can be used as antiseptics

    at low concentration.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ampicillin is a beta-lactum antibiotic that is part of the amino penicillin family and is roughly equivalent to its successor, amoxicillin in terms of spectrum and level of activity. It is not a natural antibiotic.

Multiple choice chemistry chemistry in daily life antimicrobials and antifertility drugs therapeutic action of different classes of drugs drugs and their classification

Which of the following is used as antiseptic?

  1. Tincture of iodine

  2. Equanil

  3. Heroin

  4. Histamine
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Antiseptics are antimicrobials applied to the living tissues such as wounds, cuts, ulcers and diseased skin surfaces.
Tincture of iodine is used as antiseptic on wounds.
Equanil is a tranquilizer.
Histamine is a antacid.
Heroin is a analgesic.

Multiple choice chemistry chemistry in daily life antimicrobials and antifertility drugs therapeutic action of different classes of drugs drugs and their classification

Salvarsan is the medicine used for which disease?

  1. Maleria

  2. Syphilis

  3. Acidity

  4. all of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Salvarsan is the medicine used for Syphilis. It is also called arsphenamine.
It was the first antibacterial, discovered by Paul Ehrlich (a German Bacteriologist). In 1908, he got the Nobel Prize for discovering arsphenamine (Salvarsan).

Multiple choice chemistry chemistry in daily life antimicrobials and antifertility drugs therapeutic action of different classes of drugs drugs and their classification

In 1932, which medicine was prepared by Paul Ehrlich?

  1. Sulpha drug

  2. Prontosil

  3. azodye

  4. none of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In 1932, Paul Ehrlich prepared antibiotic Prontosil.
Prontosil contains $-N=N-$ linkage similar to $-As=As-$ linkage in Salvarsan. In human body, the sulpha drug prontosil gets converted into sulphanilamide.

Multiple choice chemistry chemistry in daily life antimicrobials and antifertility drugs therapeutic action of different classes of drugs drugs and their classification

Which of the following statements is/are not correct?

  1. Antipyretics are substances which are used to reduce the body temperature.

  2. Analgesics are substance which are used to relieve pain.

  3. Antiseptics and disinfectants can be used for the same purposes.

  4. Antiseptics can be safely applied on living tissues.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Antiseptics and disinfectants cannot be used for the same purposes. Antiseptics are applied to living tissues whereas disinfectants are applied to non living tissues. However, both antiseptics and disinfectants kill micro organisms.

Multiple choice chemistry chemistry in daily life antimicrobials and antifertility drugs therapeutic action of different classes of drugs drugs and their classification

Which of the following are sulpha drugs?

  1. Sulphapyridine

  2. Prontosil

  3. Salvarsan

  4. Nardil
Reveal answer Fill a bubble to check yourself
A,B Correct answer
Explanation
Sulfonamide is the basis of several groups of drugs. The original antibacterial sulfonamides (sometimes called sulfa drugs or sulpha drugs) are synthetic antimicrobial agents that contain the Sulfonamide group. 
Sulfapyridine is a sulfonamide antibacterial.
Prontosil: Also known as Sulphamidochrysoidine, it was the first sulfa drug to be discovered. 
Salvarsan: Also known as Arsphenamine, it was the first modern chemotherapeutic agent.
Nardil is a monoamine oxidase inhibitor (MAOI).
So, sulphapyridine and prontosil are the only sulfa drugs here.
Multiple choice chemistry chemistry in daily life antimicrobials and antifertility drugs therapeutic action of different classes of drugs drugs and their classification

Chloramine-T is a

  1. disinfectant

  2. antiseptic

  3. analgesic

  4. antipyretics
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Chloramine –T is a disinfectant and an allergen. It is an organic sodium salt derivative of toluene-4-sulfonamide with a chloro substituent in place of an amino hydrogen.


Hence, option A is correct.