Podcast
Questions and Answers
What is the main difference between transdermal drug delivery and locally acting drugs?
What is the main difference between transdermal drug delivery and locally acting drugs?
- Transdermal drug delivery delivers drugs to the systemic circulation, while locally acting drugs act directly on the skin. (correct)
- Transdermal drug delivery involves diffusion through the skin, while locally acting drugs involve penetration into tissues.
- Transdermal drug delivery is always regionally acting, while locally acting drugs are never regionally acting.
- Transdermal drug delivery requires penetration into tissues, while locally acting drugs do not.
Which term describes the chemical species moving into or through the tissue?
Which term describes the chemical species moving into or through the tissue?
- Diffusion coefficient
- Permeant (correct)
- Permeation
- Diffusivity
In drug delivery, diffusion refers to:
In drug delivery, diffusion refers to:
- Movement of molecules through a domain by random molecular movement. (correct)
- Movement of molecules from one tissue to another.
- Movement of molecules from low concentration to high concentration.
- Movement of molecules from the tissue to the membrane.
What is diffusivity a measure of in drug delivery?
What is diffusivity a measure of in drug delivery?
Regionally acting drugs differ from locally acting drugs in that they:
Regionally acting drugs differ from locally acting drugs in that they:
What defines penetration in drug delivery?
What defines penetration in drug delivery?
What is the historical background of topical and transdermal formulations?
What is the historical background of topical and transdermal formulations?
In England in 2014, how many prescription items were categorized under 'skin'?
In England in 2014, how many prescription items were categorized under 'skin'?
What is the primary use of topical drug delivery?
What is the primary use of topical drug delivery?
What are some products commonly dispensed alongside treatments for skin conditions?
What are some products commonly dispensed alongside treatments for skin conditions?
Which factor does NOT affect the efficacy of topical and transdermal products?
Which factor does NOT affect the efficacy of topical and transdermal products?
What percentage of all repeat prescriptions do pharmacists account for in supplying topical and transdermal formulations?
What percentage of all repeat prescriptions do pharmacists account for in supplying topical and transdermal formulations?
What does the permeability coefficient (kp) describe?
What does the permeability coefficient (kp) describe?
Which measure is used to describe the distribution of molecules between two phases?
Which measure is used to describe the distribution of molecules between two phases?
What is the rate of permeant crossing the skin known as?
What is the rate of permeant crossing the skin known as?
Why is skin considered a challenging barrier for drug delivery?
Why is skin considered a challenging barrier for drug delivery?
What does trans-epidermal water loss depend on?
What does trans-epidermal water loss depend on?
In drug delivery, what does the vehicle refer to?
In drug delivery, what does the vehicle refer to?
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