What is a Drug? Flashcards

1
Q

Describe the meaning of Potency, Selectivity and Specificity

A
  • Potency: Amount of chemical required to produce an effect
  • Selectivity (biological): Narrowness of a drug’s range of actions on particular receptors, cellular processes or tissues
  • Specificity (chemical): Relationship between chemical structure of drug and pharmacological effects
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2
Q

What are different sources of drugs?

A
  • Micro-organisms
  • Humans and other animals
  • Mineral or mineral products
    Substances synthesised in laboratories
  • Plant
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3
Q

What are 3 types of drugs names?

A
  • Chemical
  • Approved (‘generic’)
  • Trade
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4
Q

What is Generic Prescribing?

A
  • An addition al brand of an existing medicine
  • Contains same active ingredient
  • Can be manufactured and sold by other pharmaceutical companies once the patent
  • The Therapeutic Goods Administration requires the generics medicines meet the same quality criteria and manufacturing standards as the original brands
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5
Q

Bioequivalence

A
  • Bioequivalence refers to whether the generic medicine releases the active ingredient into the bloodstream at the same rate and to the same extent as the original medicine
  • Bioequivalence is demonstrated by conducting a bioavailability study
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6
Q

What are OTC medicines?

A

Over the Counter medicines are medicines:

  • that are not prescription medicines
  • hat are not complementary medicines
  • considered to to be lower risk than prescription medicines
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