Dermabase is an example of which type of ointment base?

Dermabase is an example of which type of ointment base?

• A. Hydrophilic ointment bases
• B. Oleaginous bases
• C. W/O emulsions
• D. Water-soluble bases

Answer: (A)

The key idea is how ointment bases interact with water. Hydrophilic ointment bases are water-washable and non-greasy, blending with water and allowing easy removal from the skin. Dermabase is formulated to be water-washable and non-greasy, thanks to its hydrophilic components, which makes it suitable for delivering drugs without the heavy, oily feel of petrolatum-based bases. It’s not an oleaginous base (which is greasy and not easily washed off), not a pure water-soluble base (which would dissolve completely in water), and not a water-in-oil emulsion (which behaves more like an oil-based, occlusive system).

The key idea is how ointment bases interact with water. Hydrophilic ointment bases are water-washable and non-greasy, blending with water and allowing easy removal from the skin. Dermabase is formulated to be water-washable and non-greasy, thanks to its hydrophilic components, which makes it suitable for delivering drugs without the heavy, oily feel of petrolatum-based bases. It’s not an oleaginous base (which is greasy and not easily washed off), not a pure water-soluble base (which would dissolve completely in water), and not a water-in-oil emulsion (which behaves more like an oil-based, occlusive system).