Which of the following is NOT an advantage of solution dosage form as compared to solid dosage form?
Greater Bioavailability
Ease of Transportation
Ease of Administration
Pediatric Use
Which of the following is true with regards to the solubility of a weak acid?
Solubility increases with decreasing pH
Solubility increases with increasing pH
Solubility decreases with increasing pH
Solubility remains constant with increasing pH
A novel compound dissolves in water and the solution becomes cold. Which of the following will further increase the solubility of this compound in water?
Decrease in temperature
Decreased amount of water
Increase in temperature
Increased amount of novel compound
__________ are dispersions of liquid drugs in liquid vehicles.
Suspension
Emulsion
Colloid
Gel
Which of the following has the least aqueous solubility
CHCl3
CCl4
CH2Cl2
CH3Cl
Syrup is a concentrated alcoholic solution with sweetener and medicinal agent ?
True
False
Which of the following is not an example of Cosolvent system?
Aromatic Elixir
Iodine Tincture
Acacia Syrup
Paregoric tincture
All of the following are advantages of Pharmaceutical solutions EXCEPT
Easier to swallow
More stable than solid dosage forms
Homogenous uniform dosing is possible
The two MAJOR factors affecting solubility are?
Temperature and agitation
pH and particle size
Polarity and agitation
Temperature and pH
To determine the ratio of buffer components to add to a solution to maintain a given pH you should use which equation?
pH= pKa + log (salt/acid)
pHmax = pKa + Log [(St-Sa)/Sa]
B= change in B/ change in pH
St= Sa(1+ [Ka/H])
All of the following are generally true about Organic Compound Solubility EXCEPT:
More carbon atoms decrease the aqueous solubility
Halogens decrease solubility
Polar groups increase solubility
Low melting point indicates low solubility
Which of the following would be considered an ethanol/ water cosolvent system.
Inverted syrup
Magic Mouthwash
Paregoric
Which of the following is an example of a cosolvent?
Sodium Acetate
Oleic Acid
Sodium Benzoate
Saccharin Sodium
which of the following is NOT a force of attraction that affects dissolution?
Ion-dipole
Van Der Waals
Hydrogen Bonding
Ionic Bonding
Sedimentation increases with_______?
Particle size reduction
Increase in viscosity of dispersion medium
Increase in density of dispersed phase
Increase in density of dispersion medium
Which of the following is true when particle aize of an antibiotic powder is reduced from 50 micrometers to 5 micrometers?
Higher surface area, Lower surface energy
Lower surface area,Higher surface energy
Lower surface area, Lower surface energy
Higher surface area, higher surface energy
Flocculation occurs due to stronger forces of attraction between the particles of a suspension.
The Sedimentation Volume (F) for an ideal flocculated system is
0.5
1.0
0.7
0.3
Which of the following is responsible for charge on a neutral particle surface when suspended in water?
Adsorption of OH-
Adsorption of H2O
Particle wetting
Particle agglomeration
In an electrical double layer which layer is associated with the zeta potential?
Bulk layer
Diffuse layer
Surface layer
Stern layer
Which of the following situations best represents a deflocculated system?
F=0.2
F=0.9
F=1.0
F=1.2
Flocculation is observed at extreme (+)ve and (-)ve values of zeta potential.
The structured vehicle approach is applicable to both flocculated and deflocculated particles.
Which of the following best represents the flow of flocculated suspension?
Newtonian Flow
Dilant Flow
Plastic Flow
Pseudoplastic Flow
In which of the following methods oil and emulsifier are mixed first followed by addition of water at once?
In-situ soap method
English Method
Auxiliary Method
Continental Method
Bottle Method
Skin permeation is a must for the component(s) of both medicated and non-medicated topical dosage forms.
A major skin permeation pathway for small hydrophilic molecule is?
Trans appendageal
Hair Follices
Transcellular
Intercellular
Absorption bases are associated with all of the following except?
Anhydrous
Absorb water
Water Washable
Hydrous
Occlusive
What is HFA?
Hydroflouroalkane
Hydroflorine Association
How Far Away
Happy Friend Association
Droplets decelerate as they leave the spray nozzle of a pressurized spray.
pDMIs can be sprayed in any orientation
All medical Aerosol products contain a propellant
All nasal sprays deliver the same dose independent of the orientation in which they are used
Which of the following is NOT an advantage of a topical antibiotic sprayed on the skin rather than delivered by a cream.
Convenient
Minimal contamination of unused product
Accurate dose metering
No need to touch skin
Smaller particle size
If inhaled, particles with a diameter of 6 micrometers would be expected to penetrate the respiratory system to the level of the:
Bronchioles
Alveoli
Nasal Cavity
Throat (pharynx)
For which type(s) of aerosol system(s) will the pressure drop as the product is used?
Compressed gas system
Three- phase system
Two-Phase system
B and C only
Which part of the valve assembly of an aerosol is responsible for preventing leakage of the formulation from the container?
Mounting Cap
Actuator
Gasket
Housing
Which of the following is NOT an example of a "surface Spray" aerosol?
Dermatological aerosols
Paint Sprays
Hair Sprays
Room deodorizers
What is the FDA recommended alcohol content limit in liquid OTC drug product for children 6-12 years?
10%
1%
0.5%
5%
Which of the following descriptive terms of relative solubility includes 12.5% w/v strength?
Very soluble
Soluble
Slightly soluble
Freely Soluble
Which of the following groups on organic molecules will NOT increase water solubility?
CH2F
NH2
COOH
SO3H
Which of the following is the pharmaceutical advantage of elixirs over syrups as liquid dosage forms?
Contains less sugar
Dissolve ionized and unionized drugs
Provide faster drug absorption
Are better at masking the taste of drugs
Which of the following minimum alcohol percentages is required in medicated syrups to prevent microbial growth?
0.1%
15%
Water cannot dissolve which of the following organic compounds by intermolecular hydrogen bonds?
Esters
Alcohol
Acids
Hydrocarbons
Besides accurately and conveniently measuring dosage volume which of the following factors is important when making drug solutions for oral administration?
Color
Bioavailability
Stability
Taste
Which of the following is an example of an ingredient in an organogel?
Sodium alginate
Hydrocarbon waxes
Polyethylene glycol
Carboxylmethylcellulose
Which of the following describes the action of a flocculating agent in drug suspensions?
Enable loose interparticle attraction
Dissolve the suspended particles
Prevent interparticle attraction
Reduce the particle size
Which of the following is a correct statement regarding inhalation drug products (aerosols)?
Each successive dose is slightly smaller as the pressure decreases with each actuation.
The total quantity of accurate dose from a metered dose inhaler is limited by depletion of the liquid phase of the propellant
The total quantity of accurate doses from a metered dose inhaler is limited by depletion of the active drug.
chlorofluorocarbon are federally prohibited for use as propellants
Which of the following blends of surfactants would favor a stable O/W emulsion?
0.5 parts Myrj 45 + 0.5 parts Brij 30
0.4 parts Span40 +0.6 parts Tween 20
0.6 parts span60 +0.4 parts Tween80
0.7 parts span80 + 0.3 parts Tween60
Which of the following terms describes a fluid drug preparation that would increasingly flow more freely as it is agitated?
Pseudoplastic
Plastic
Dilant
Thixotropic
Stoke's Law equation does NOT include which of the following factors?
Interparticle Attraction
Fluid Density
Particle Diameter
Gravitational Constant
When treating a topical condition, all of the following are suitable criteria for selecting an ointment base for drug delivery EXCEPT:
Degree of Occlusion provided
Therapeutic systemic blood levels of drug
Stability of drug in an ointment base
Characteristics of the skin that will be treated.
Which of the following is an example of a water soluble base
White ointment USP
Lanolin USP
Polyehtylene Glycol Ointment USP
Hydrophillic Ointment USP
Which of the following is NOT an appropriate pharmacist counseling point to a patient before applying ophthalmic ointment?
Tip of the tube should be placed in gentle contact with the conjunctival sac
Patient should wash and dry hands before application
Improperly handled ophthalmic products can lead to eye infection
After application blurred vision is normal and will likely occur
Which of the following is FALSE regarding levigating agents which are used to reduce drug particle size?
Glycerin is an appropriate levigating agent for O/W bases
The levigating agent must be physically and chemically compatible with the drug and the ointment base
The drug for levigation should be soluble in the liquid used as the levegating agent
Mineral oil is a good levigating agent for W/O ointment bases
Which of the following TDDS products is permitted to be cut into smaller pieces for patient specific therapy?
Nitro-Dur
Nicoderm
Duragesic
Fentanyl Patch
All of the above
None of the above
All of the following factors predict favorable transdermal drug absorption for systemic therapy EXCEPT:
Full hydration of stratum corneum
A high aqueous solubility of the drug
Molecular weight of drug of about 100-400
A high partition coefficient of the drug
Wearing a TDDS for longer than the approved duration can result in unsafe plasma drug concentration