Topics covered
- Dosage form design
- Excipient functionality
- Biopharmaceutics and BCS
- Pharmacokinetic basics
- Unit operations
10 Pharmaceutics MCQs with answers
- Q1
Bioavailability is defined as:
- AFraction of administered dose reaching systemic circulation unchanged
- BTotal drug excreted
- CDrug bound to plasma proteins
- DDrug metabolized in liver
Explanation: Bioavailability (F) = fraction of unchanged drug reaching the systemic circulation.
- Q2
Suspensions are:
- ASolid in liquid coarse dispersion
- BLiquid in liquid
- CGas in liquid
- DSolid in gas
Explanation: Suspensions are coarse dispersions of insoluble solids in a liquid vehicle.
- Q3
Emulsion is:
- ALiquid-in-liquid dispersion
- BSolid-in-liquid
- CGas-in-solid
- DSolid-in-solid
Explanation: Emulsions disperse one immiscible liquid in another using emulsifiers.
- Q4
Sustained release dosage forms aim to:
- AMaintain drug levels over extended time
- BRelease immediately
- CAvoid GI absorption
- DIncrease first-pass effect
Explanation: SR formulations prolong drug release to maintain therapeutic plasma levels.
- Q5
Enteric coating is designed to dissolve in:
- AStomach (acidic pH)
- BSmall intestine (higher pH)
- CMouth
- DColon only
Explanation: Enteric polymers (e.g., HPMCP) dissolve at higher intestinal pH, protecting the drug from gastric acid.
- Q6
Half-life (t½) of a first-order drug:
- ADepends on dose
- BIs constant
- CDoubles every dose
- DEquals Cmax
Explanation: For first-order kinetics, t½ is independent of dose.
- Q7
Volume of distribution (Vd) is:
- AApparent volume relating drug amount to plasma concentration
- BActual body water
- CLung volume
- DCardiac output
Explanation: Vd = Amount in body / Plasma concentration — an apparent volume.
- Q8
First-pass metabolism occurs primarily in:
- ALungs
- BLiver
- CKidneys
- DSkin
Explanation: First-pass metabolism mainly happens in the liver (and gut wall).
- Q9
Lyophilization is:
- AFreeze drying
- BSpray drying
- CTray drying
- DVacuum distillation
Explanation: Lyophilization removes water from frozen product via sublimation.
- Q10
Isotonic saline concentration is:
- A0.9% w/v NaCl
- B5% NaCl
- C10% NaCl
- D0.45% NaCl
Explanation: Normal saline = 0.9% NaCl, isotonic with blood plasma.
Take the full Pharmaceutics test
The complete bank has 100 questions with a 30-minute timer, instant scoring and full answer review in the Quiz Engine.