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7 Cards in this Set
- Front
- Back
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What are the characteristics of the following liquid dosage types?
solution suspension syrup elixir extract tincture |
solution - form in which the drug is dissolved within the diluent
suspension - form in which small particles of the drug are suspended in a liquid vehicle, a suspending agent slows the movement of the particles towards the container's bottom, drug product is not dissolved syrup - sweetened vehicle keeps the drug in solution elixir - form in which the drug is dissolved in a vehicle containing high % of alcohol, may be sweetened extract - form in which the drug is the oil or active portion of an extracted plant, using alcohol tincture - alcohol based dosage used externally |
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What are the characteristics of the following semi-solid dosage forms?
cream lotion ointment |
cream - emulsion product dissolved in oil droplets & suspended in water, creates a smooth product, emulsion can be separated/broken by exposure to extreme temperatures
lotion - emulsion-like cream, but contains more water so it's thinner than cream ointment - thick emulsion or petroleum based product, drug portion is absorbed to a greater extent than creams, (gram per gram basis) ointments are more potent than creams |
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What are the characteristics of a compressed tablet/capsule?
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immediate release drug product is released in the stomach besides drug entity, also contains bulking & binding agents, lubricants, stabilizers, preservatives, coloring agents perhaps coated with glossy coating
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What are the characteristics of a sustained release tablet/capsule?
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contents are released in a slow, predictable manner wax matrix allows the drug to slowly leech out of the tablet pfizer involves a hard shell tablet, with an osmotic membrane on one end & a small laser-cut hole on the other when fluid enters thru the membrane, drug is forced out the hole rate @ which fluid enters is constant & identical between persons, rate @ which drug is released is constant too
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What are the characteristics of an enteric coated tablet/capsule?
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does not dissolve in the acidic stomach dissolves in the basic pH of the intestines patient should avoid antacids & milk 1 hr before + 2 hrs after the dose useful for drugs which irritate the stomach besides drug entity, also contains bulking & binding agents, lubricants, stabilizers, preservatives, coloring agents perhaps coated with glossy coating
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What are the characteristics of a sublingual tablet/capsule?
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dissolves quickly under the tongue rich blood supply under the tongue, drug is absorbed into the bloodstream
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What are the characteristics of a buccal tablet/capsule?
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dissolves slowly in the pouch between the cheek & gums
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