Questions and Answers
What type of substance is often used to protect the skin from irritation?
Dusting powders
What is the chemical inert property of protectives?
They are insoluble in water
What is the main problem associated with the use of talc on broken skin?
It can produce sterile abscesses or granulomas
What is the recommended alternative to talc for use on broken skin?
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What is the main benefit of using talc on intact skin?
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Study Notes
- Protectives are substances that are applied to the skin to protect it from irritation.
- Protectives are generally insoluble in water and have a chemically inert property.
- Protectives are usually applied as dusting powders, suspensions containing insoluble protective substances, or ointments.
- Protectives are usually applied to areas that are subject to constant irritation, such as the skin which is subject to moisture and/or friction.
- If the area to which the protective is to be applied is abraded and exuding fluid, adsorbent-type protectives should not be used.
- TALC USP XX (3MgO.4SiO2.H2O) is a protectives that is used to protect the skin.
- Talc is a white, odorless, tasteless, and insoluble powder that is used as a filtering aid and as a lubricant and dusting powder.
- When used on broken skin, talc can produce sterile abscesses or granulomas. This problem precludes the use of talc on surgical gloves.
- Absorbable dusting powders are now recommended for use on talc-containing medication. There are no problems with the use of talc on intact skin.
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