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 zoology immune system active and passive immunity immunity related disorders and problems diseases and immunity

Which of the following drugs is used in leukaemia patients as an immunosuppressant?

  1. Cyclophosphamide

  2. Tetracycline

  3. Beta blockers

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A-Cyclophosphamide CP known as cytophoshphane among other names is a medication used as chemotherapy and to suppress the immune system. Chemotherapy is used to treat lymphoma, multiple myeloma, leukemia, ovarian cancer, breast cancer, small cell lung cancer, neuroblastoma, and sarcoma.

So the correct option is A.

Multiple choice zoology immune system active and passive immunity immunity related disorders and problems diseases and immunity

 ............. are fungal metabolites with immunosuppressive properties.

  1. Cyclosporin A

  2. Rapamycin

  3. Tetracycline

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Both Cyclosporin A (derived from Tolypocladium inflatum) and Rapamycin (derived from Streptomyces hygroscopicus) are well-known fungal metabolites used as potent immunosuppressants in transplantation.

Multiple choice zoology immune system active and passive immunity immunity related disorders and problems diseases and immunity

Cyclosporin is useful in

  1. Prophylactic for viruses

  2. Immunosuppressant

  3. Prophylactic for marasmus

  4. Treating allergic eozema
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Cyclosporin is an effective immunosuppressant used in the treatment of autoimmune disorders (such as rheumatoid arthritis) and in organ transplantation to prevent rejection. Cyclosporin lowers the activity of T-cells and hence, suppressing the activity of the immune system. Cyclosporin was isolated from the fungus Tolypocladium inflatum. Common side effects include high blood pressure, headache, kidney problems, increased hair growth, and vomiting. So, the correct answer is 'Immunosuppressant'.

Multiple choice botany seeds - structure and germination what is a seed? seeds seed

Which one of the following pairs is not correctly matched?

  1. Morphine-Opium poppy

  2. Atropine- Black nightshade

  3. Quinine- Cocoa leaves

  4. Caffeine- Tea leaves
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Quinine is an anti-malarial drug extracted from the bark of the Cinchona tree, not from cocoa leaves. Morphine from opium poppy, atropine from black nightshade, and caffeine from tea leaves are correctly matched.

Multiple choice biology body fluids and circulation cardiac disorders cardiac regulation and disorders the blood system

A patient was administered a chemical agent called Guanfacine hydrochloride after the patient showed the symptoms like shortness of breath and headache. Guantacme hydrochloride is a known stimulant of central $\alpha - 2 $ -adrenergic receptors of the medulla regulating the sympathetic nervous system. The patient in this case must be suffering from

  1. Hypertension

  2. Hyperslimulation

  3. Hyperpolarization

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Alpha 2 receptors in the brain stem and in the periphery inhibit sympathetic activity and thus lower blood pressure.

Guanfacine is an antihypertensive drug whose principal mechanism of action is the stimulation of central α2-adrenergic receptors. By stimulating these receptors, guanfacine reduces sympathetic nerve impulses from the vasomotor center to the heart and blood vessels. This decreases blood pressure.
So, the correct option is 'Hypertension'. 

Multiple choice biology blood circulatory system of human cardiac disorders cardiac regulation and disorders the blood system

A chemical that prevents blood clotting is most useful in the treatment of

  1. Leukaemia

  2. Anaemia

  3. Coronary thrombosis

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

In coronary thrombosis, blood clotting occurs which becomes fatal. Physicians normally prescribe such medicines which prevent blood clotting or dissolve the clots that are formed.

Multiple choice chemistry biomolecules enzymes and hormones hormones coordination in human beings- chemical control

Which of the following is an antidiabetic drug :

  1. Insulin

  2. Penicillin

  3. Chloroquine

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

Antidiabetic drugs are medicines developed to stabilise and control blood glucose levels amongst people with diabetes. Antidiabetic drugs are commonly used to manage diabetes.

There are a number of different types of antidiabetic drug including:

  • Insulin
  • Pramlintide (Amylin)
  • $GLP-1$ receptor agonists (such as Byetta and Victoza)
  • Oral hypoglycemics (tablets)

Multiple choice biology plant kingdom and the environment around us some important plants uses of plants as medicine medicinal plants

Drug santonin (anthelmintic) comes from

  1. <p>Centipeda</p>

  2. <p>Artemesia</p>

  3. <p>Tagetes</p>

  4. <p>Chrysanthemum</p>
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Santonin was a drug which was widely used in the past as an antihelmintic, a drug which expels parasitic worms by paralyzing them and allowing them to be passed outside the body. Santonin was developed by German chemists by extracting the chemical from Artemisia cina. Previously Artemisia was used as an antihelmintic remedy. So, the correct answer is 'Artemesia'.

Multiple choice biology plant kingdom and the environment around us some important plants uses of plants as medicine medicinal plants

(A) Reserpine (B) Ephedrine
(C) Ajmaline (D) Colchicine
Alkaloid pair which is completely unrelated with Rauwolfia is



  1. A, B

  2. B,C

  3. C,D

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

Ephedrine is an alkaloid with a phenethylamine skeleton found in various plants in the genus Ephedra.

Colchicine is an alkaloid isolated from Colchicum autumnale.
So the correct option is D.

Multiple choice biology plant kingdom and the environment around us some important plants uses of plants as medicine medicinal plants

Reserpine is an alkaloid obtained from _____________.

  1. Aswagandha

  2. Sarpgandha

  3. Opium

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

 Reserpine is an alkaloid obtained from roots of Rauwolfia serpentina (sarpgandha) family Apocynaceae. It is used in treatment of blood pressure,
snake bite and mental disorders.

So, the correct answer is 'Sarpgandha'

Multiple choice biology plant kingdom and the environment around us some important plants uses of plants as medicine medicinal plants

Medicine for curing respiratory problems is obtained from

  1. Ephedra

  2. Calotropis

  3. Eucalyptus

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

Ephedra is a herb that has been used in Traditional Chinese Medicine for more than 5,000 years. It was used primarily to treat asthma, bronchitis, and high fever.

Calories are used in making floral tassels in some mainland Southeast Asian cultures

Eucalyptus is a fast-growing evergreen tree native and is used to reduce the symptoms of coughs, colds, and congestion.

Cannabis is a psychoactive drug obtained from the Cannabis plant used for recreational purposes.

Thus the correct option is A.

Multiple choice biology plant kingdom and the environment around us some important plants uses of plants as medicine medicinal plants

Reserpine an alkaloid or drug extracted from roots of the
following plant which cures the mental disorders and reduces
or check the blood pressure or A hypertension drug is derived
from

  1. Rauwolfia serpentine

  2. Ferula asafoetida

  3. Atropa belladonna

  4. Digitalis perpurea
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Reserpine is a drug derived from the roots of the plant Rauwolfia. The powdered whole root of the Indian shrub Rauwolfia serpentina had been used to treat snakebites, insomnia, hypertension (high blood pressure), and insanity.