oral- solutions

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  • Created by: anna888
  • Created on: 28-02-23 17:29
advantages of oral solutions
fast absorbtion,uniform dose, easy to swallow and manufacture
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disadvantages oral solutions
expensive manufacturing transport and storage, bad taste, drugs poor water solubility, less stable
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excpients in solution
viscoisty enhances-improve pouring eg glycerine. preservatives-prevent microbial growth eg benzoic acid. sweeters/flavourins-palatibility eg sucrose. antioxidants-increase stability eg ascorbic acid
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factors effecting solution degradation
pH, temp, uv light, oxygen
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prolonging stability methods
pH buffers eg citrate or phosphate. antioxidants, containers that lower uv light entering
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4 methods of increasing solubility
pH modification, complexation, co solvents, surfactants
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explain complexation
using cyclodextrins. ring sugars with hydrophobic core and hydrophillic outer layer. drug enters middle and made more soluble
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explain cosolvents
other water miscible solvents used to increase solubility. ethanol, gycerol, propylene glycol. based on like dissolves like principal
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explain surfactants
hydrophillic head, hydrophobic tail. above cmc forms miscelle around drug, makes it more soluble.
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Other cards in this set

Card 2

Front

disadvantages oral solutions

Back

expensive manufacturing transport and storage, bad taste, drugs poor water solubility, less stable

Card 3

Front

excpients in solution

Back

Preview of the front of card 3

Card 4

Front

factors effecting solution degradation

Back

Preview of the front of card 4

Card 5

Front

prolonging stability methods

Back

Preview of the front of card 5
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