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5 Written questions

5 Matching questions

  1. Define: Levigation
  2. What is a tincture?
  3. Water soluble bases are made from this important compound:
  4. Lanolin is a (w/o or o/w) emulsion with ____% water.
  5. what is the difference between water-oil/oil-water emulsions?
  1. a Poly Ethylene Glycol (PEG)
  2. b Tincture is an alcoholic or hydroalcoholic solution of chemicals or soluble constituents of vegetable drugs.
    Tinctures must be keep away from light and heat
  3. c water-oil emulsion with 25% water
  4. d Ans: the difference is the dispersed phase/continuous phase
    dispersed phase comes first
    Water-oil: dispersed phase is water.
    Oil-water: dispersed phase is oil
  5. e Adding an insoluble substance to a powder while its wet is called levigation

5 Multiple choice questions

  1. It contains pyrogens which are microbial compounds increase body temperature.
  2. multiple OH groups in alcohols
    sorbitol and glycerin
  3. ...dunno
  4. wet gum= adding water to acacia
    dry gum = adding oil to acacia
  5. water:oil:emulsifying agent (eg. acacia)

5 True/False questions

  1. what is the bottle method of emulsification and what is it's ratio?Its a variation of dry gum: oil:water:acacia
    3;2;1 or 2:1;1


  2. what are the four types of bases used to make ointment?1. water washable bases
    2. Oleaginous/hydrocarbon/oil bases
    3.Emulsion bases


  3. which of the following types of water cannot be used to make parenteral & opthalmic solutions?
    a) purified water
    b) bacteristatic water
    Ans: A do not use purified water for opthalmic solutions


  4. Sorbic Acid and glycerin is an important component of?Capsules


  5. what is the use of emulsifying agents?Opposite of osmosis using high pressure to move from region of high solvent concentration to region of low solvent concentration.