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
  1. Allyl chloride

  2. Amido black 10B

  3. 4-Aminobenzoic acid

  4. Aminophylline

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Aminophylline is a bronchodilator. It is a compound of the bronchodilator theophylline with ethylenediamine in 2:1 ratio. The ethylenediamine improves solubility, and the aminophylline is usually found as a dihydrate.

Multiple choice
  1. Amobarbital

  2. Amoxicillin

  3. Amphetamine

  4. Amyl nitrate

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Amobarbital is a drug that is a barbiturate derivative. It has sedative-hypnotic and analgesic properties. It is a white crystalline powder with no odour and a slightly bitter taste.

Multiple choice
  1. Iminodiacetic acid

  2. Aminoethylpiperazine

  3. Mesalazine

  4. Amiodarone

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Amiodarone is an antiarrhythmic agent (medication used for irregular heart beat) used for various types of tachyarrhythmias (fast forms of irregular heart beat), both ventricular and supraventricular (atrial) arrhythmias.

Multiple choice
  1. Mocetinostat

  2. Raclopride

  3. Aziridines

  4. Benzanthrone

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Benzanthrone is an aromatic hydrocarbon derivate used as a dyestuff intermediate for anthraquinone-based dyes. It has the appearance of a light yellow to brown-green powder with melting point of 170 °C. It is insoluble in water and soluble in alcohol.

Multiple choice
  1. allergy

  2. angina pectoris

  3. nephritis

  4. goitre

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Anti histamin relieves allergy.

Multiple choice
  1. Cannabis sativa

  2. Erythroxylon coca

  3. Papaver somniferum.

  4. Claviceps perpurata

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Morphine is obtained from Papaver somniferum.

Multiple choice
  1. cytochrome

  2. alpha 1-antitrypsin

  3. NADH dehydrogenase

  4. monoamine oxidase

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Cyanide inhibits cytochrome c oxidase (Complex IV) in the mitochondrial electron transport chain, blocking cellular respiration. This prevents ATP production and leads to cellular asphyxiation. Alpha 1-antitrypsin is a protease inhibitor, NADH dehydrogenase is Complex I, and monoamine oxidase breaks down neurotransmitters.

Multiple choice
  1. linear

  2. trigonal planar

  3. tetrahedral

  4. square planar

  5. octahedral

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In square planar complexes, the geometry is prevalent for transition metal complexes with d8 configuration. Thus, the central atom (Pt) in carboplatin has dsp2 hybridisation with square planar geometry.

Multiple choice
  1. Chlorotrianisene, estrone, estriol

  2. Diethylstilbestrol, estrone, fosfestrol

  3. Estriol, diethylstilbestrol, fosfestrol

  4. Chlorotrianisene, diethylstilbestrol, fosfestrol

  5. Estrone, estriol, fosfestrol

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Chlorotrianisene is a non-steroidal synthetic oestrogen that was formerly used for the treatment of menopause, deficiencies in ovary function, and prostate cancer. Diethylstilbestrol is a synthetic nonsteroidal oestrogen that was first synthesized in 1938. Fosfestrol is a synthetic oestrogen used as an antineoplastic agent.

Multiple choice
  1. bolus

  2. injection

  3. insufflation

  4. sublingual

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Sublingual refers to the pharmacological route of administration by which drugs diffuse into the blood through tissues under the tongue. Many pharmaceuticals are designed for sublingual administration, including cardiovascular drugs, steroids, barbiturates, enzymes, and increasingly, vitamins.