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Pharmaceutical Solutions III Quiz
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Pharmaceutical Solutions III Quiz

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Questions and Answers

What is the alcoholic concentration of spirits generally like?

  • Below 20%
  • Around 50%
  • Usually over 60% (correct)
  • Over 30%
  • How do volatile substances in spirits react when mixed with water?

  • They become less volatile
  • They generally separate and form a milky preparation (correct)
  • They dissolve completely
  • They form a clear solution
  • For what purposes can spirits be used medicinally?

  • As disinfectants
  • As flavoring agents and for therapeutic value (correct)
  • As food additives
  • As cleaning agents
  • How are spirits generally taken orally to reduce bitterness?

    <p>Mixed with water</p> Signup and view all the answers

    What are nonaqueous solutions intended for when applied on the skin?

    <p>To soothe and provide medicinal effects</p> Signup and view all the answers

    What are the most recently official spirits in the USP–NF?

    <p>Aromatic ammonia spirit, camphor spirit, compound orange spirit, and peppermint spirit</p> Signup and view all the answers

    What type of liniment is preferred when massage is desired?

    <p>Oleaginous liniment</p> Signup and view all the answers

    Why are oleaginous liniments less irritating to the skin than alcoholic liniments?

    <p>They have a different vehicle</p> Signup and view all the answers

    When should liniments not be applied to skin areas?

    <p>When the skin is broken or bruised</p> Signup and view all the answers

    What should be indicated on the label of all liniments?

    <p>Shake well before use</p> Signup and view all the answers

    What are collodions composed of?

    <p>Pyroxylin dissolved in alcohol and ether</p> Signup and view all the answers

    What is pyroxylin chiefly composed of?

    <p>Cellulose tetranitrate</p> Signup and view all the answers

    What is the primary reason for the high alcoholic concentration of spirits?

    <p>To enhance the solubility of aromatic or volatile substances</p> Signup and view all the answers

    Which method is NOT used for the preparation of spirits?

    <p>Emulsification</p> Signup and view all the answers

    What is the purpose of adding water when taking spirits orally?

    <p>To reduce the bitterness of the spirit</p> Signup and view all the answers

    Which of the following is a nonaqueous solution intended to be rubbed on the skin?

    <p>Liniment</p> Signup and view all the answers

    Which volatile substance is associated with peppermint spirit?

    <p>Menthol</p> Signup and view all the answers

    What are liniments primarily intended for?

    <p>External application on the skin</p> Signup and view all the answers

    Why are oleaginous liniments less irritating to the skin than alcoholic liniments?

    <p>Because they are primarily used for massage, which requires a less irritating vehicle</p> Signup and view all the answers

    What type of solvent may be used for oleaginous liniments?

    <p>A mixture of alcohol and ether with or without added medicinal substances</p> Signup and view all the answers

    What must liniments containing insoluble matter have indicated on their label?

    <p>Must be shaken thoroughly before use and labeled 'shake well'</p> Signup and view all the answers

    What is pyroxylin chiefly composed of?

    <p>Cellulose nitrate</p> Signup and view all the answers

    What is pyroxylin's solubility in a mixture of 3 volumes of ether and 1 volume of alcohol?

    <p>Slowly but completely soluble</p> Signup and view all the answers

    How should collodions be stored due to their flammability?

    <p>Stored away from flame in well-closed containers, protected from light</p> Signup and view all the answers

    What is the appearance of pyroxylin when dry?

    <p>Harsh to the touch</p> Signup and view all the answers

    What is the purpose of adding medicinal substances to collodions?

    <p>To improve their medicinal properties</p> Signup and view all the answers

    What is the main reason for applying collodions externally?

    <p>To minimize the risk of skin irritation</p> Signup and view all the answers

    What should be done before applying liniments that are emulsions or contain insoluble matter?

    <p>Shake them thoroughly to ensure even distribution of the dispersed phase</p> Signup and view all the answers

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