Page 32 - Pharmaceutics-II (02-06-01 203)
P. 32
Plasters
What are plasters?
▪ Plasters are solid or semisolid adhesive masses intended for external application, made of
such materials and consistency as to adhere to the skin and thereby attach as dressing
(different from a bandage)
▪ The adhesive material is a rubber base or a synthetic resin
▪ Plasters are applied to the skin to provide:
❖ close contact and prolonged contact at the site
❖ Mechanical support and protection
❖ Have an occlusive and macerating action
▪ Examples of medicated plasters,
− corn plasters (10 to 40% salicylic acid)
− Back plasters (oleoresin of capsicum)
https://youtu.be/v_IvDfcLLEQ?si=yf2iz3yu7CtWsJxq
Dressings
What are dressings?
▪ Dressings are external application resembling ointments in consistency, but remaining
semisolid at body temperature
▪ They are sterile pads to help promote healing and prevent further harm
▪ Classes Of Dressings include, primary wound dressing (wet dressing), Absorbents (surgical
cotton and gauze), and Bandages .
▪ Examples of Dressings
1. Paraffin dressing, NF - soft, analgesic, covering surface denuded by burns.
2. Petrolatum Gauze, USP - is absorbent gauze saturated with white petrolatum.
AQUACEL Surgical post-op dressing application on a hip
An overview of 9 advanced wound dressings (Part 1)
31
