Excipients Flashcards
(38 cards)
Glidant/Lubricant for powders
magnesium sterate
Surfactant for powders
sodium lauryl sulfate
Magnesium Oxide
adsorbent powder
Magnesium carbonate
adsorbent powder
Kaolin
adsorbent powder
Eutectic mixtures
when two components are mixed they melt at a lower temperature than the melting temperature of the individual component
Glycerol
plasticizers
Sorbitol
plasticizers
hard lozenges
sucrose or syrup
soft lozenges
PEG
chewable lozenges
glycerin or gelatin
Emulsion
liquid dispersed in a liquid.
heterogeneous.
need emulsifier to bring two phases closer together
Suspension
solid dispersed in a liquid.
heterogeneous.
wetting agent/levigating agent is a surfactant used to incorporate insoluble drug into a liquid to make suspension.
Levigating agents
Glycerin
Mineral oil
Polyethylene glycol
Propylene glycol
Surfactants
help two compounds that resist each other to move closer together by reducing the surface tension
Emulsifier
Surfactant that reduces surface tension between oil/water
HLB number
Low HLB <10: oil soluble and used for water in oil emulsions
High HLB >10: water soluble and used for oil in water emulsions
Adsorbents
Keep powders dry
Magnesium oxide, magnesium carbonate, kaolin
Anti-adherent
Prevents tablet ingredients from sticking to punches
Magnesium stearate
Anti-foaming agent
Simethicone
Antioxidant
Ascorbic acid
Coatings
Prevent degradation due to oxygen, light, moisture
Shellac, gelatin, gluten
Diluents
Add size to small dosages
lactose, starches, calcium salts, mannitol, sorbitol, cellulose
Disintegrant
Alginic acid, polacrilin potassium (amberlite), cellulose products, starches, Nu-Tab