NAPLEX Practice Exam 2026 – Comprehensive Test Preparation

Question: 1 / 1820

Which surfactants are used for topical drug delivery?

Water and glycerin

PEG and poloxamer

Surfactants are compounds that are commonly used in topical drug delivery to enhance the absorption of the drug into the skin. Water and glycerin (option A) are commonly used as moisturizers in topical products. However, they do not have significant surfactant properties and would not be effective in enhancing drug delivery. Ethanol and water (option C) are commonly used as solvents, but they do not have surfactant properties and would not enhance drug delivery. Bleach and water (option D) are not used in topical drug delivery at all and can be harmful to the skin. Therefore, the correct answer is option B, as PEG and poloxamer are commonly used surfactants in topical drug delivery.

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Ethanol and water

Bleach and water

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