Chemistry ยท 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

Which of the following is NOT a route of drug administration?

  1. Oral

  2. Intravenous

  3. Transdermal

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

Transdermal is not a route of drug administration, but rather a method of drug delivery through the skin.

Multiple choice

The rate and extent of drug absorption is primarily determined by which of the following factors?

  1. Drug formulation

  2. Physicochemical properties of the drug

  3. Route of administration

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

The rate and extent of drug absorption are influenced by a combination of drug formulation, physicochemical properties of the drug, and the route of administration.

Multiple choice

The distribution of a drug in the body is influenced by which of the following factors?

  1. Protein binding

  2. Tissue perfusion

  3. Drug lipophilicity

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

The distribution of a drug in the body is affected by protein binding, tissue perfusion, and drug lipophilicity.

Multiple choice

The process of eliminating drugs and their metabolites from the body is known as:

  1. Absorption

  2. Distribution

  3. Metabolism

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

Excretion is the process of eliminating drugs and their metabolites from the body, typically through the kidneys, liver, or intestines.

Multiple choice

The term 'bioavailability' refers to:

  1. The fraction of a drug that reaches systemic circulation

  2. The rate at which a drug is absorbed

  3. The time it takes for a drug to reach peak concentration

  4. The duration of a drug's action
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Bioavailability refers to the fraction of a drug that reaches systemic circulation after administration, taking into account factors like absorption, first-pass metabolism, and bioavailability enhancers.

Multiple choice

Which of the following is NOT a factor that can affect drug distribution?

  1. Protein binding

  2. Tissue perfusion

  3. Drug lipophilicity

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

Drug concentration is not a factor that directly affects drug distribution, as distribution is primarily determined by factors like protein binding, tissue perfusion, and drug lipophilicity.

Multiple choice

Which of the following is NOT a stage in the drug approval process in India?

  1. Pre-clinical studies

  2. Clinical trials

  3. Regulatory review

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

Pre-clinical studies are not a stage in the drug approval process in India. They are conducted before clinical trials to assess the safety and efficacy of a drug in animals.

Multiple choice

Which of the following is NOT a common type of pharmaceutical product?

  1. Tablets

  2. Capsules

  3. Injections

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

Suppositories are not a common type of pharmaceutical product. They are a type of medication that is inserted into the rectum or vagina.

Multiple choice

Which of the following is NOT a common type of pharmaceutical packaging?

  1. Blister packs

  2. Bottles

  3. Tubes

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

Ampoules are not a common type of pharmaceutical packaging. They are a type of glass container that is used to store injectable medications.

Multiple choice

Which of the following is NOT a common type of pharmaceutical dosage form?

  1. Tablets

  2. Capsules

  3. Injections

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

Ointments are not a common type of pharmaceutical dosage form. They are a type of topical medication that is applied to the skin.

Multiple choice

Which of the following oral medications for ED has the longest duration of action?

  1. Sildenafil (Viagra)

  2. Tadalafil (Cialis)

  3. Vardenafil (Levitra)

  4. Avanafil (Stendra)
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Tadalafil (Cialis) has a duration of action of up to 36 hours, compared to 4-6 hours for sildenafil (Viagra), 4-8 hours for vardenafil (Levitra), and 6-12 hours for avanafil (Stendra).

Multiple choice

Which of the following is NOT a contraindication to the use of oral medications for ED?

  1. Uncontrolled hypertension

  2. Recent myocardial infarction

  3. Severe liver disease

  4. Recreational drug use
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Recreational drug use is not a contraindication to the use of oral medications for ED.

Multiple choice

Which of the following drugs is commonly used to treat migraine headaches?

  1. Triptans

  2. Nonsteroidal anti-inflammatory drugs (NSAIDs)

  3. Opioids

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

Triptans, such as sumatriptan and zolmitriptan, are commonly used to treat migraine headaches due to their specific action on serotonin receptors in the brain.

Multiple choice

Which of the following is NOT a class of medications used in the treatment of pain?

  1. Opioids

  2. Nonsteroidal anti-inflammatory drugs (NSAIDs)

  3. Antidepressants

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

Antipsychotics are not typically used in the treatment of pain.

Multiple choice

Which of the following is an example of a non-opioid analgesic?

  1. Morphine

  2. Ibuprofen

  3. Oxycodone

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

Ibuprofen is a non-opioid analgesic that belongs to the class of nonsteroidal anti-inflammatory drugs (NSAIDs).