Final Exam (Written) Flashcards

1
Q

Liquid preparation containing 1 or more drug substances molecularly dispersed n a suitable solvent

A

Solution

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2
Q

Usually aqueous, may contain other co-solvents like alcohol

A

Topical solutions

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3
Q

Concentrated aqueous preparations of sugar or sugar substitutes with or without flavoring agents

A

Syrups

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4
Q

Clear, sweet, hydroalcoholic solutions that are usually flavored. Usually insoluble in water alone, but are soluble in water-alcohol mixtures

A

Elixirs

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5
Q

Most common vehicles for oral solutions (alone or in combination) (4)

A

Water, ethanol, glycerin, syrups

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6
Q

Solution packaging (4)

A

Glass or plastic, light resistant containers

  1. Squeeze bottles
  2. Applicator or dropper bottles
  3. Amber vials
  4. Opaque cream/ointment jar
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7
Q

One definite rule when choosing package sizing

A

Always use the smallest package that will hold the preparation

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8
Q

Oral liquid storage

A

Room temperature or refrigerated

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9
Q

Syrups storage

A

Refrigerated

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10
Q

Two-phased system consisting of a finely divided solid dispersed in a solid, liquid, or gas

A

Suspension

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11
Q

When is it appropriate to make a suspension?

A

When the drugs are not sufficiently soluble in a solvent

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12
Q

Suspension routs of administration (6)

A

Oral, topical, opthalmic, otic, nasal, rectal

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13
Q

Composition of suspension (5)

A
Insoluble particles (API)
Liquid medium (vehicle)
Suspending agents/surfactants
Preservatives
Flavors/sweeteners
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14
Q

Suspension storage

A

Room temperature or refrigerated

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15
Q

Suspension labeling (4)

A

Shake well - ALWAYS
Internal/external use
Storage
BUD

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16
Q

General BUD for oral suspensions at cold temperature

A

<14 days

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17
Q

General BUD for topical suspension preperations

A

<30 days

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18
Q

Thermodynamically unstable mixtures of two essentially immiscible liquids with an emulsifying agent to hold them together

A

Emulsion

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19
Q

Emulsions consist of (3)

A

Dispersed phase: internal phase
Dispersion medium: external phase
Emulsifying agent

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20
Q

Oil-in-water emulsion phase distinctions (o/w)

A
Dispersed phase (internal) = oil
Dispersion medium (external) = water
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21
Q

O/W emulsion characteristics of product (5)

A

Internal or external use, soluble in water, water washable, non-occlusive, non-greasy

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22
Q

Water-in-oil emulsion phase distinctions (w/o)

A
Dispersed phase (internal) = water
Dispersion medium (external) = oil
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23
Q

W/O emulsion characteristics of product (5)

A

External use only, insoluble in water, not water washable, occlusive, greasy

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24
Q

External use emulsion examples (2)

A

Cream, lotions

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25
Q

Three components of emulsions

A

Lipid phase
Aqueous phase
Emulsifier

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26
Q

Example of emulsifiers (4)

A

Acacia
Agar
Pectin
Gelatin

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27
Q

Ratios of oil:water:emulsifier in Wet Gum (English) and Dry Gum (Continental) methods of emulsions

A

2-4 : 2 : 1

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28
Q

Difference in preparation of Wet Gum vs. Dry Gum methods

A

Wet gum:

  1. Add emulsifier
  2. Add WATER and triturate until uniform
  3. Add OIL in small quantities and triturate
  4. Triturate until creamy, white, and crackling sound occurs
    * Typically more stable*

Dry Gum:

  1. Add emulsifier (gum)
  2. Add OIL and triturate until uniform
  3. Add WATER all at once and rapidly triturate
  4. Triturate until creamy white and crackling sound occurs
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29
Q

API of a w/o emulsion base

A

API is typically oil or insoluble powder

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30
Q

API of a o/w emulsion base

A

API is typically an aqueous solution or insoluble powder

31
Q

Three functions of topical pharmaceuticals

A
  1. Protect injured area, permit skin to rejuvenate
  2. Provide skin with hydration
  3. Deliver medication to the skin for a topical or systemic effect
32
Q

Drug penetration into the skin is determined by (5)

A
Pressure applied
Surface area covered
Condition of the skin
Base used
Use of occlusive dressings
33
Q

Characteristics of ointment (4)

A
  1. Semisolid preparations
  2. Intended to be applied externally to skin or mucous membranes
  3. Soften or melt at body temperature
  4. Spread easily, not gritty
34
Q

Characteristics of paste

A
  1. Thick, stiff ointments
  2. Do not flow at body temperature; protectively coat areas
  3. Usually contain at least 20% solids
35
Q

Cream application characteristics (3)

A
  1. Applied to moist, weeping lesions
  2. “Drying effect”
  3. Fluid in lesions are miscible with external phase of creams
36
Q

Lotion application characteristics (1)

A
  1. Applied to areas where skin rubs together (example: toes, fingers, thighs, underarms)
37
Q

Ointment application characteristics (3)

A
  1. Used on dry, scaly lesions
  2. Emollient properties hydrate the skin
  3. Stay on skin longer
38
Q

Paster application characteristics (2)

A
  1. Applied to areas that require protection

2. Stay on the skin longest

39
Q

Semisolid systems consisting of suspensions that are interpenetrated by a liquid

A

Gel

40
Q

Routes of administration for gels (5)

A

Oral, topical, nasal, vaginal, rectal

41
Q

Composition of gels

A
  1. Continuous phase (usually aqueous, but can be alcoholic or oleaginous)
  2. Gelling agent (Carbopol/carbomer, bentonite, methylcellulose)
42
Q

Helps to thicken the gel (triethanolamine/trolamine, sodium hydroxide, potassium, hydroxide)

A

Neutralizer

43
Q

What must the carbomer be run through?

A

Simple sieve

44
Q

Steps for adding carbomer to continuous phase of gel (3)

A
  1. Slowly add to continuous phase while stirring to avoid clumping
  2. After all is added, stir rapidly
  3. Once all is incorporated, stir steadily for 10-15 minutes at a reduced speed to avoid entrapment of excess air
45
Q

Allow pharmacists to prepare small-scale amounts to meet individual patient needs

A

Capsules

46
Q

Dissolve slowly in the mouth or can easily be chewed or swallowed

A

Troche

47
Q

Usually aqueous, may contain other co-solvents, like alcohols

A

Topical solutions

48
Q

Solid particles of API are dispersed in a sweetened, flavored, and sometimes viscous vehicle

A

Oral suspension

49
Q

Reasons for viscous vehicle in oral suspensions (2)

A
  1. Helps keep particles separated

2. More liquidy vehicle would lead to caking

50
Q

Dissolve slowly in mouth or can be easily chewed or swallowed

A

Lozenge/Troche

51
Q

Thick, stiff ointments that do NOT flow at body temperature; intended to protectively coat areas to allow it to heal; usually contain

A

Paste

52
Q

Thermodynamically unstable mixtures of 2 immiscible liquids with an emulsifying agent to hold them together (takes on the characteristics of the external phase)

A

Emulsion

53
Q

Liquid preparation containing one or more drug substances molecularly dispersed in a suitable solvent (homogenous)

A

Solution

54
Q

Clear, sweetened hydroalcoholic solutions that are usually flavored; usually insoluble in water alone, but soluble in water/alcohol mixtures

A

Elixirs

55
Q

2-phased system consisting of finely divided solid dispersed in a solid, liquid, or gas

A

Suspension

56
Q

Semisolid systems consisting of suspensions that are interpenetrated by a liquid

A

Gels

57
Q

Semisolid preparation intended to be applied externally to skin or mucous membrane; softens or melts at body temperature and is spread easily, not gritty

A

Ointment

58
Q

Applied to moist, weeping lesions; fluid in lesions are miscible with external phase creating a “drying effect”

A

Creams

59
Q

Applied to areas that require protection and stay on the skin the longest

A

Pastes

60
Q

Used on dry, scaly lesions; emollient properties hydrate skin and allow it to stay on skin longer

A

Ointments

61
Q

Applied to areas where skin rubs together

A

Lotions

62
Q

Slow, uniform, dissolution

A

Hard lozenges

63
Q

May be more appropriate for patient when solids can’t be swallowed or strengths need to be tailored

A

Solution

64
Q

Appropriate when drugs are not sufficiently soluble in solvent

A

Suspension

65
Q

Used when two immiscible liquids must be dispensed in the same preparation

A

Emulsions

66
Q

Energy must be put in to mix

A

Emulsions

67
Q

Topical pharmaceuticals

A

Ointments/Pastes

68
Q

Three functions of topical pharmaceuticals

A
  1. Protect injured area
  2. Provide skin with hydration
  3. Deliver medication to skin for a topical or systemic effect
69
Q

Appropriate when patient can’t swallow solid oral dosage form and the medications is designed for slow release

A

Lozenge

70
Q

O/W emulsion dispersed phase and dispersion medium

A

Dispersed=oil

Dispersion=water

71
Q

Where to use O/W emulsion

A

Internal or external

72
Q

W/O emulsion dispersed phase and dispersion medium

A

Dispersed=water

Dispersion=oil

73
Q

Where to use W/O emulsion

A

Topical

74
Q

Opaque, soft solids/thick liquids that consist of meds that are dissolved or suspended; can be either type of emulsion, but most commonly found O/W

A

Creams