DD Exam 2

SEMISOLID PREPARATIONS INTENDED FOR EXTERNAL APPLICATION to the skin or mucous membrane

4 general classes of ointment bases

semisolid dosage forms containing one or more drug substances dissolved or dispersed in a suitable base

semisolid systems consisting of either suspensions made up of small inorganic particles or large organic molecules interpenetrated by a liquid

semisolid dosage forms that contain one or more drug substances intended for topical application that consists of thick, stiff ointments that do not ordinarily flow at body temperature, therefore serve as protective coatings over areas to which they are applied

an agent that softens the skin or soothes irritation in skin or mucous membrane

a substance that protects injured or exposed skin surfaces from harmful or annoying stimuli

a substance that promotes retention of water in the skin by forming a hudrophobic barrier that prevents moisture in the skin from evaporating

a substance that causes water to be retained because of its hygroscopic properties

promotes hudration of the skin

Absorption of substances from outside the skin to positions beneath the skin including the blood stream

increases skin permeability by reversibly damaging or altering the physio-chemical nature of the "Stratum Corneum" to reduce resistance

the delivery of a charged chemical compound across teh skin using an electrical field

use of high frequency sound to enhance the trans-dermal drug delivery

Petrolatum, White Petrolatum, White Ointment, Liquid Petrolatum (mineral oil), Paraffin