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.

Chemical absorption routesDrug formulation typesMedication mechanismsEnzyme inhibitorsPharmacogenomic tests

Pharmacology and Therapeutics Questions

Multiple choice chemistry medicinal chemistry antacids and antihistamines therapeutic action of different classes of drugs ph regulation of the stomach

Which of the following is not an antihistamine?

  1. Brompheniramine

  2. Terfenadine

  3. Iproniazid

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

Iproniazid (Marslid, Rivivol, Euphozid, Iprazid, Ipronid, Ipronin) is a non-selective, irreversible monoamine oxidase inhibitor (MAOI) of the hydrazine class. It is a xenobiotic that was originally designed to treat tuberculosis, but was later most prominently used as an antidepressany drug.

Multiple choice zoology health and diseases diabetes mellitus lifestyle diseases non-infectious diseases

The common weed Catharanthus roseus (=Vinca rosea) is source of 

  1. Hay fever

  2. Two carcinogens -vincristin and vinblastin

  3. Two anticancer drugs -vincrinstin and vinblastin

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

Vinca  rosea is a native and endemic ornamental and medicinal plant, o source for the anticancer drugs vincristine and vinblastine.

Correct answer-C

Multiple choice political science our society marginalisation in india understanding marginalisation challenges and solutions

Narcotics that are derived from opium which are usually smuggled are __________________.

  1. Codeine and morphine

  2. Morphine and endorphin

  3. Tetracycline and morphine

  4. Panadol and codeine
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Opium a dried latex obtained from opium poppy contains alkaloid morphine which is processed chemically to produce heroin and other synthetic opioids for medicinal use and for the illegal drug trade.

Codeine is an opiate used to treat pain, as a cough medicine, and for diarrhea.

Multiple choice biology chemical coordination in plants abscisic acid fruit plants: structure and function

An antitranspirant is

  1. Phenyl mercuric acid

  2. Abscisic acid

  3. Salicylic acid

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

Antitranspirants are compounds applied to the leaves of plants to reduce transpiration. Some examples are phenylmercury acetate, abscisic acid (ABA), and aspirin (acetyl salicylic acid). ABA is a well-known antitranspirant.
Thus, the correct answer is an option (D). 

Multiple choice biology aids to health immunization, treatment and antibiotics antibodies and antitoxin prevention and treatment of disease

Select the mismatched one.

Drug Source Application
$(1)$ Taxol Bark of Yew Anticancerous
$(2)$ Liquorice Leaves of Glycine max Bronchitis
$(3)$ Quinine Bark of Cinchona ledgeriana Antimalarial
$(4)$ Reserpine Roots of Rauwolfia serpentina Against schizophrenia

  1. A

  2. B

  3. C

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

Liquorice or licorice is the root of Glycyrrhiza glabra from which a sweet flavour can be extracted. Licorice is taken by mouth for various digestive system complaints including stomach ulcers, heartburn, colic, and ongoing inflammation of the lining of the stomach (chronic gastritis). 

So, the correct option is 'B'.

Multiple choice botany root - external morphology root systems root system in plants forms of root

From which part of Atropa belladona, the drug belladona is obtained?

  1. Roots

  2. Bark

  3. Stem

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

The drug belladona is obtained from roots of Atropa belladona. Atropa belladonna, commonly known as belladonna or deadly nightshade, is a perennial herbaceous plant in the family Solanaceae. The foliage and berries are extremely toxic, containing tropane alkaloids. These toxins include scopolamine and hyoscyamine, which cause a bizarre delirium and hallucinations.

Multiple choice biology food for health fats fats and their test different nutrients in food

One of the steroid for manufacturing antifertility pills obtained from Dioscorea is know as

  1. Diazepam

  2. Diosgenine

  3. Diazine

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

Dioscorea spp, commonly known as Yams belong to family Dioscoreaceae. The true Yams, belonging to the genus Dioscorea are grown throughout the wetter tropics for their stem tubers. They are important sources of food for millions of people in the tropics, especially in the south western Nigeria where they are a staple food. Dioscorea is a large genus with about 600 tropical or subtropical species. Yams constitute a cheap source of carbohydrate foods and are nutritionally better than cassava because of a higher proportion of proteins. They also contain more of vitamin C.
In recent years, wild species have been much used for the extraction of steroidal sapogenins which can be converted into cortisone, into the testosterone (male hormone) and the oestrogens as well as progesterones (female hormones). Three wild species particularly D. composita, D floribunda, D. mexicana have been used as a source material for the manufacture of oral contraceptives. In this way this genus has contributed significantly towards controlling the world population.

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

What type of drug is cyclosporin?

  1. It treats male infertility.

  2. It suppresses immune response while an organ transplantation.

  3. It increases disease resistance capacity of children.

  4. It treats ovarian cysts.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Cyclosporin is an immunosuppressive agent used in organ transplant patient. It is produced by fungus Trichoderma polysporum.

So, the correct  option is 'it suppresses immune response while an organ transplantation'.

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

Which of the following diseases are cured by an immunosuppressant drugs?

  1. Graft versus host diseases

  2. Bone marrow transplantation

  3. Haemoplhillia

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

Immunosuppressants are used to manage graft versus host disease and are often required after procedures like bone marrow transplantation to prevent rejection.

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

After any graft/organ transplant, which medications does a patient have to take all his/her life

  1. Immuno modulators

  2. Immuno suppressants

  3. Immuno Competors

  4. Immuno stimulants
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Immunosuppressants are drugs or medicines that lower the body's ability to reject a transplanted organ. Another term for these drugs is anti-rejection drugs. After an organ transplant, the patient needs to take immunosuppressant (anti-rejection) drugs. These drugs help prevent the immune system from attacking ("rejecting") the donor organ. Typically, they are taken for the lifetime of your transplanted organ. Other medications are taken to help the anti-rejection drugs do their job or control their side effects. Patients may also need to take medications for other health conditions.
So the correct option is 'immunosuppressants'.
Multiple choice zoology immune system active and passive immunity immunity related disorders and problems diseases and immunity

Prolonged use of  which of the following immunosuppresants may cause immunosuppression of both innate and adaptive immunity?

  1. Tetracycline

  2. Opioids

  3. Analgesics

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

Chronic opioid use is known to suppress both innate and adaptive immune responses, affecting cytokine production and lymphocyte proliferation. Tetracyclines are antibiotics and analgesics are a broad class, neither of which are primarily classified as immunosuppressants.

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

 ............ is a immunosuppressant which is mainly used as a folic acid analogue.

  1. Methotrexate

  2. Tetracycline

  3. Azathioprine

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

Methotrexate is an immunosuppressant mainly used as a folic acid analogue. It is known as amethopterin is a chemotherapy agent and immune system suppressant. It is used to treat cancer, autoimmune diseases, ectopic pregnancy and medical abortions. Used for include breast cancer, leukemia, lung cancer, lymphoma.

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

 Which of the following immunosuppressant drugs is used is to slow down the progression of multiple sclerosis?

  1. IFN

  2. Mycophenolate

  3. Beta blocker

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

IFN is the immunosuppressive drug to slow down the progression of multiple sclerosis. It is used to treat various cancers and virus infections. It is same as protein that your body naturally produces. It is through to work by affecting cell function and body's natural defenses in many ways.