Ceutics II Exam 2 - Excipients

Butylated hydroxyanisole (BHA)

antioxidant

Magnesium aluminum silicate

stabilizer and texture enhancer

Magnesium stearate (in tablets)

lubricant

Hypromellose and polyethylene glycol

film coating for tablet

Titanium dioxide

Opacifying agent

Polyoxyl stearyl ether, emulsifying wax, fatty alcohols (cetyl alcohol)

Foaming agent, surfactant/emulsifiers

propylene glycol, water

Rectal Foam solvents

N-butane, isobutene, propane

Rectal Foam Propellant

Rectal Gel: Propylene glycol, ethyl alcohol

Co-solvent

Rectal Gel: Hydroxypropyl methylellulose

Gelling agent

rectal gel: Sodium benzoate

Preservative, buffer/pH adjusting agent

rectal gel: Benzyl alcohol

co-solvent

Rowasa: Carbomer 934P

Suspending/thickening agent

Rowasa: Xantham gum

suspending/thickening agent

Rowasa: Edetate disodium

chelating agent

Rowasa: sodium benzoate

preservative

Rowasa: potassium acetate

Buffer/pH adjustment

Rowasa: Potassium metabisulfite

antioxidant/reduce agent