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
  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. 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.

Multiple choice
  1. Intramuscular

  2. Intravenous

  3. Intraperitoneal

  4. Intraosseous

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

Intravenous therapy or IV therapy is the giving of substances directly into a vein. Therapies administered intravenously are often called specialty pharmaceuticals. It is commonly referred to as a drip because many systems of administration employ a drip chamber, which prevents air entering the blood stream (air embolism) and allows an estimate of flow rate.

Multiple choice
  1. Atropine

  2. Diphenhydramine hydrochloride

  3. Hyoscyamine

  4. Scopolamine

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

Diphenhydramine hydrochloride is a first-generation antihistamine mainly used to treat allergies.It has a powerful hypnotic effect, and for this reason is often used as a nonprescription sleep aid and a mild anxiolytic.

Multiple choice
  1. emtricitabine

  2. cidofovir

  3. lamivudine

  4. darunavir

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

Cidofovir is an injectable antiviral medicine for the treatment of cytomegalovirus (CMV) retinitis in patients with AIDS. It suppresses CMV replication by selective inhibition of viral DNA polymerase and, therefore, prevents  viral replication and transcription.

Multiple choice
  1. Abacavir (ABC)

  2. Aciclovir

  3. Adefovir dipivoxil

  4. Amantadine

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

Aciclovir is a guanosine analogue antiviral drug.  One of the most commonly-used antiviral drugs, it is primarily used for the treatment of herpes simplex virus infections, as well as in the treatment of varicella zoster (chickenpox) and herpes zoster (shingles).

Multiple choice
  1. Fomivirsen

  2. Foscarnet

  3. Ganciclovir

  4. Inosine pranobex

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

Inosine pranobex is a combinatinon of inosine, acetamidobenzoic acid, and dimethylaminoisopropanol used as an antiviral drug. Inosine pranobex has no effect on viral cells itself. It acts as a powerful immunostimulant.

Multiple choice
  1. Chromium dioxide

  2. Chromium trioxide

  3. Chromyl chloride

  4. Cisplatin

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

Cisplatin, is a chemotherapy drug. It is used to treat various types of cancers, including sarcomas, some carcinomas (e.g., small cell lung cancer, and ovarian cancer), lymphomas, and germ cell tumors.

Multiple choice
  1. Fischer and Mering

  2. Marcellin Berthelot

  3. Adolf von Baeyer

  4. Robert Bunsen

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

Barbital was first synthesized in 1902 by German chemists Emil Fischer and Joseph von Mering. They published their discovery in 1903 and it was marketed in 1904 by the Bayer company as “Veronal”.