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Pharmaceuticals: Semisolid Dosage Forms

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Questions and Answers

What type of gelling agents are carbomer, povidone, and polyvinyl alcohol?

Semi-synthetic
Natural
Synthetic (correct)
Organo solvents

What is the purpose of cleaning and drying the area before applying a semisolid?

To ensure proper adhesion
To prevent infection (correct)
To prevent side effects
To enhance penetration

What type of semisolid offers cooling, soothing, emollient, or moisturizing effects?

Plasters
Foams (correct)
Suppositories
Dressings

What is the primary difference between rectal foams and suppositories?

Route of administration (C) Signup and view all the answers

What type of dressing is used as a bandage or skin graft?

Gauze dressing (B) Signup and view all the answers

What is the primary characteristic of a plaster?

Adheres to skin (B) Signup and view all the answers

What is a characteristic of an ointment that makes it suitable for use on mucosal membranes?

Its hydrophobic nature (A) Signup and view all the answers

What is the second step in Fick's law of diffusion related to percutaneous drug absorption?

Partition of the drug into the stratum corneum (D) Signup and view all the answers

What is the main advantage of emulgels?

They provide a dual release control system for delivering hydrophobic drugs (B) Signup and view all the answers

What is the main characteristic that distinguishes pastes from ointments?

The percentage of finely dispersed solids (A) Signup and view all the answers

What is the main use of pastes?

To treat oozing lesions (B) Signup and view all the answers

What is the purpose of antioxidants in pastes?

To prevent oxidation and spoilage (C) Signup and view all the answers

What is a characteristic of hydrogel dressings?

They keep the wound moist and absorb exudate (C) Signup and view all the answers

What is a common use of suppositories?

For patients who cannot swallow (C) Signup and view all the answers

What is a benefit of hydrocolloid dressings?

They provide a moist and insulating environment for healing (B) Signup and view all the answers

What is a type of suppository base?

All of the above (D) Signup and view all the answers

What is a method of preparing suppositories?

Hand-rolling (D) Signup and view all the answers

What is an advantage of rectal foams?

They have a better coverage area than suppositories (B) Signup and view all the answers

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