Block 3 Lab Flashcards
(54 cards)
Define elixir
oral solutions with hydroalcoholic sweetener
Define tincture.
alcoholic/hydroalcoholic solutions w/ veggie substances
Define syrup.
oral solution with lots of sugar
Define spirit.
alcoholic or hydroalcoholic solution
Define lotion.
liquid emulsion for topical application
Ethanol content for child under 1 month?
none
Ethanol content for child 1 month - 6 years?
0.5 %
Ethanol content for child 6-12 years?
5%
Ethanol content for child older than 12 years?
10%
When do preservatives not need to be added?
1) 9 < pH < 3
2) antimicrobials already present
3) stat
4) rx for neonate (<1 month)
What substances act as oral preservatives?
1) alcohols/glycols (only at high concentrations)
2) organic acids
- - benzoate, sorbate, methyl/propyl-parabens
What preservatives also work for topical solutions?
1) isopropyl alcohol
2) BAK
What factors influence palatability?
1) taste
2) smell
3) texture
4) appearance
5) temperature
What % (v/v) is generally used for flavor concentrates?
0.2 - 0.5% (max 2%)
Define flavor concentrate.
an oil- or alcohol-based flavor without sweetener
What are examples of proprietary blend additives?
1) bitter suppressor
2) sweetening enhancer
How are fine, uniform-sized particles achieved?
1) drug form
2) equipment
3) compounding technique
Why are fine, uniform-sized particles important?
1) optimal dissolution
2) patient acceptance
3) acceptable sedimentation
How is a uniform dispersion achieved?
by wetting
What are common wetting agents?
1) glycerin
2) alcohol
3) propylene glycol
4) PEG
5) surfactant
6) water, not often used because it needs preservatives and hydrophilic drug
7) ora-plus for hydrophilic tablet wetting
How do wetting agents help achieve a uniform dispersion?
help liquid replace air on the surface of powders
What are common suspending agents?
1) methylcellulose
2) ora-plus
3) suspendol-S
What agents promote deflocculated suspensions?
1) bentonite
2) xanthan gum
3) oraplus
4) suspendol
5) USP suspenders
What agents promote flocculated suspensions?
1) acadia
2) methylcellulose
3) tragacanth