Term
| Viscosity Enhancing Agents for AQUEOUS systems include: |
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Definition
| Natural polymers, Semi-synthetic polymers, Synthetic polymers, particulate colloids |
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Term
| Natural polymers include: Function: |
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Definition
| Acacia, tragacant, xanthan gum, sodium alginate. Function as suspending and emulsifying agents |
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Term
| Semisynthetic polymers include: |
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Definition
| Methylcellulose, carboxymethylcellulose, hydroxypropylcellylose |
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Term
| Methylcellulose, carboxymethylcellulose, hydroxypropylcellylose functions: |
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Definition
| MC: As a bulk laxative, diet acids, and artificial tear products. CMC: Similar to MC but more water soluble, has - charged groups. HPC: More soluble in alcohol, enhances the visosity of elixers and alcoholic gels |
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Term
| Synthetic Polymers include: |
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Definition
| Carbomer (Carbopol, acrylic copolymer) Polaxamer (Pluronic, ethylene oxide-propylene oxide copolymer) polyvinyl alcohoo, povidone. These are MORE STABLE and LESS SUSCEPTIBLE to microbiologic degredation than natural and semi-synthetic polymers |
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Term
| Particulate Colloids include: Function: |
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Definition
| Bentonite (Aluminum silicate) Veegum (Magnesium Aluminum Sulfate) Viscosity Enhanching Agents |
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Term
| Viscosity Enhancing Agents for Oil Systems include: |
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Definition
| Cetyl alcohol, stearyl alcohol, cetostearyl alcohol, petrolatum, beeswax |
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