Chemistry · Biology

Pharmacology and Therapeutics

1,699 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.

Chemical absorption routesDrug formulation typesMedication mechanismsEnzyme inhibitorsPharmacogenomic tests

Pharmacology and Therapeutics Questions

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.

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. antipyretic
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Antiseptics drugs cause destruction of micro organisms, which produce septic diseases, eg. dettol, savlon, acriflavin, boric acid, phenol, iodoform, $KMn{O} _{4}$ and some dyes such as chloramine-T, methylene blue.

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

Sulphanilamide is a/an:

  1. sulpha drug

  2. antibiotic drug

  3. disinfectant

  4. antacid
Reveal answer Fill a bubble to check yourself
A,B Correct answer
Explanation

Antibiotics containing chemicals called sulfonamides are called suplha drugs.
In the body, prontosilis converted to a compound called sulphanilamide, which is the real active compound as antibacterial agent.

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

Protonsil is converted to a compound called:

  1. sulphapyridine

  2. arsphenamine

  3. salvarsan

  4. sulphanilamide
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Protonsil also called as sulfamido chrysoine is first synthetic drug used in treatment of general bacterial infections in humans. Protonsil converts into sulfoamide in the body which prevent bacterial infection.