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 biology food and health adulteration of food food adulteration food and human health

A preservative which can cause reaction in asthmatics, allergy and hyperactivity in children is____________.

  1. Sodium benzoate

  2. Sodium metabisulphite

  3. Garboxy-methyl cellulose

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

Both sodium benzoate and sodium metabisulphite are well-documented preservatives that can trigger asthma attacks, allergic reactions, and hyperactivity in sensitive individuals. Option C appears to be a typo for carboxy-methyl cellulose, which is a thickener/stabilizer, not a preservative linked to these reactions.

Multiple choice zoology drugs effects of smoking smoking tobacco busy at work - our internal organs

Nicotine acts as a stimulant because it mimics the effect of

  1. Thyroxine

  2. Acetylcholine

  3. Testosterone

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

Nicotine is found in the leaves of tobacco. It acts as both stimulant as it mimics the acetylcholine and also as the depressor. It stimulates passage of nerve impulses causes muscles to relax. 

Multiple choice chemistry adsorption and colloids applications of colloids colloids around us the colloidal state

What is the use of colloidal copper ?

  1. In treatment of cancer

  2. In treatment of syphilis

  3. Diagnostic agent for paresis

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Colloidal metal supplements are used to treat deficiencies of metals in the body and boost its immune system. Colloidal copper is actually small flecks of copper mixed with purified water. The water acts as a vehicle for delivering the metal to the digestive system.
Copper acts as an excellent anti-oxidant which helps prevents and treats diseases like.- diabetes and some cases claims, also prevents cancer., Proper Growth and Health, Copper is vital for good health and normal growth. It helps in the protection of skeletal, nervous and cardiovascular systems.

Multiple choice bio-chemistry organization of life concept of metabolism metabolism in animals metabolism

Which of the following represents the metabolic anti-transparent?

  1. PMA
  2. $CO _2$

  3. Aspirin

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

PMA (phorbol myristate acetate) acts as a metabolic activator or tumor promoter, stimulating various cellular processes. It is often described as 'anti-transparent' in the sense of being a metabolic stimulant. CO2 and aspirin have different primary roles in metabolism.

Multiple choice zoology important and common human diseases allergy and autoimmune diseases allergy non infectious diseases

Antihistamine drugs are effective against

  1. Bacterial infection

  2. Viral infection

  3. Paraplegia

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

Antihistamines are drugs that inhibit the action of histamine in the body by blocking the receptors of histamine. When the histamine recepotrs are stimulated by histamine, it may produce allergic reactions, such as itching, hay fever and rash or hives. Antihistamines treat the symptoms of such allergic reactions.
Thus, the correct answer is option (D), 'Allergy'.

Multiple choice zoology important and common human diseases allergy and autoimmune diseases allergy non infectious diseases

Use of antihistamines and steroid give a quick relief from

  1. Nausea

  2. Headache

  3. Allergy

  4. Cough
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • Antihistamines are drugs which are used to treat allergic rhinitis and other allergies. Antihistamines can give relief when a person has nasal congestion, sneezing, or hives because of pollen, dust mites, or animal allergy. Histamine is mostly responsible for allergic reactions. Antihistamines block the action of histamines.
  • A steroid is a biologically active organic compound. Steroids such as corticosteroids are used in the treatment of allergic reactions by reducing inflammation associated with allergies. They prevent and treat nasal stuffiness, sneezing, and itchy, runny nose due to seasonal or year-round allergies. They can also decrease inflammation and swelling from other types of allergic reactions
  • So, the correct answer is 'Allergy'.
Multiple choice biology classification and variation dna - history and structure biotechnology commercial applications of biotechnology

The name of drug used in cancer treatment produced by biotechnology is

  1. Interferon

  2. HGH

  3. TSH

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

Interferons are produced by the body cells as a defensive response to viruses. These belong to the group known as cytokines. Type II interferon is secreted only by natural killer cells and T lymphocytes, its main purpose is to signal the immune system to respond to infectious agents or cancerous growth. So, the correct answer is option A.

Multiple choice cancer - causes, signs and diagnosis human health and diseases zoology

For the treatment of cancer, biological response modifiers such as _______ are given.

  1. $\beta$-interferons
  2. $\gamma$-interferons
  3. $\alpha$-interferons
  4. $\delta$-interferons
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Alpha-interferons are biological response modifiers commonly used in cancer immunotherapy to activate the immune system and inhibit tumor cell proliferation.

Multiple choice cancer - causes, signs and diagnosis human health and diseases zoology

Which of the following is not used to treat cancer?

  1. $^{131}$I
  2. $^{60}$Co

  3. Taxol

  4. Streptokinase
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • Streptokinase (SK) is a thrombolytic medication and enzyme. 
  • As a medication, it is used to break down clots in some cases of myocardial infarction (heart attack), pulmonary embolism, and arterial thromboembolism.
  • Hence Streptokinase is not used to treat cancer.
  • So, the correct answer is 'Streptokinase'.
Multiple choice cancer - causes, signs and diagnosis human health and diseases zoology

Drugs vincristin and vinblastin used in cancer therapy are obtained 

  1. Rauwolfia serpentina

  2. Atropa serpentina

  3. Catharanthus roseus

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

Catharanthus roseus, commonly known as the rosy periwinkle is a species of flowering plant belonging to family Apocynaceae. It is native and endemic to Madagascar but grown elsewhere as an ornamental and medicinal plant. It is a source of the drugs vincristine and vinblastine which are used in the treatment of cancer. 

So, the correct answer is 'Catharanthus roseus'.

Multiple choice cancer - causes, signs and diagnosis human health and diseases zoology

Which of the following is used in the treatment of cancer

  1. Interferon gamma

  2. Interferon alpha

  3. Inrerferon beta

  4. Reo-pro
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • Interferon alpha is a biological therapy drug.
  •  It may be used to treat kidney cancer, melanoma, carcinoid tumours and some types of lymphoma and leukaemia. Interferon alpha is often called interferon.
  •  It is usually is used in the treatment of cancer given as an injection under the skin (subcutaneously). 
  • Hence, Interferon alpha is used in the treatment of cancer.
  • So, the correct answer is 'Interferon alpha'.