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5 Written questions

5 Matching questions

  1. what is the bottle method of emulsification and what is it's ratio?
  2. what is the difference between wet gum and dry gum method of making emulsions?
  3. what is Pluronic Lecithin Organogel (PLO) and why is it important?
  4. which type of water is best for preparing parenteral solutions?
  5. What is a tincture?
  1. a Tincture is an alcoholic or hydroalcoholic solution of chemicals or soluble constituents of vegetable drugs.
    Tinctures must be keep away from light and heat
  2. b Its a variation of dry gum: oil:water:acacia
    3;2;1 or 2:1;1
  3. c PLO gel is compatible with diverse range of therapeutic agents, including lipophilic and hydrophilic drugs. Most drugs can be incorporated without stability issue.
  4. d water for injection USP
  5. e wet gum= adding water to acacia
    dry gum = adding oil to acacia

5 Multiple choice questions

  1. the near saturation of syrups prevent microbial growth thereby no parabens are needed as antimicrobials
  2. equal amounts of oil, water, acacia
  3. 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
  4. Ans: A do not use purified water for opthalmic solutions
  5. they reduce the surface tension between the wate and oil and allow the two to mix.

5 True/False questions

  1. Define: Polyols
    Which type of product is likely to contain Polyols
    multiple OH groups in alcohols
    sorbitol and glycerin


  2. which of the following types of water CANNOT be used for making injections?
    a) sterile water for inhalation
    b) bacteristatic water USP
    c) water for injection USP
    d) sterile water for irrigation USP
    Ans: A do not use purified water for opthalmic solutions


  3. Lanolin is a (w/o or o/w) emulsion with ____% water.water-oil emulsion with 25% water


  4. Define: humectant and give 2 examples.Adding an insoluble substance to a powder while its wet is called levigation


  5. Sorbic Acid and glycerin is an important component of?Poly Ethylene Glycol (PEG)


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