Chapter 6- Liquid Dosage Forms

Question 1

Liquid Dosage Forms

Answer 1

1. Provide a route for medication to those patients who cannot swallow solid dosage forms after oral surgery
2. Shorter shelf life
3. May need to be refrigerated
4. May need to mask taste

Question 2

Solutions

Answer 2

1. Prepared to be the complete dissolution of medications in a suitable liquid
2. Can be taken internally, applied externally

Question 3

Suspensions

Answer 3

1. Liquids in which the medication does not completely dissolve but rather is suspended in a liquid formulation
2. In time, the suspended particles will settle to the bottom and must be redistributed by shaking
   3.Bottle of suspension meds must be shaken before dispensing (“shake well” auxiliary label should be placed on the prescription bottle)
3. Can be taken internally or applied externally

Question 4

Reconstituted Liquids

Answer 4

1. Require the addition of distilled water within the dispensing pharmacy
2. Stored as a powder due to rapid deterioration
3. Needs to be shaken after reconstitution and before use
4. Most need to be refrigerated
5. “Shake well” and when necessary “refrigerate” auxiliary labels should be placed on the prescription bottle

Question 5

Emulsions

Answer 5

1. Preparations containing oil and water
2. Oil is suspended in the water with the help of emulsifying agent
3. Oil and water eventually separate to form two clearly visible layers
4. Shaking the emulsion will redisperse the layers
5. Must be shaken before dispensing and a “shake well” auxiliary label placed on the patient’s prescription bottle

Question 6

Elixirs

Answer 6

1. Clear sweet combinations of water and alcohol
2. Intended for oral use

Question 7

Fluid Extracts and Tinctures

Answer 7

1. Contains plant extracts as the active ingredient in water and alcohol

Question 8

Spirits and Essences

Answer 8

1. Contain substances that evaporate quickly in ambient condition
2. Keep in airtight containers to prevent evaporation

Question 9

Foams

Answer 9

1. Systems in which gas has been incorporated into a liquid
2. When released, the entrapped gas gives the product a very light consistency

Question 10

Shampoo

Answer 10

1. An easy method to apply medication to the scalp
2. Due to large amount of hair, other topical preparations are difficult to use in this area

Question 11

Colloids

Answer 11

1. Liquid preparations which dry to form a flexible film that can be removed from the skin

Question 12

Mouthwash/Rinse

Answer 12

1. Provide medication to the oral cavity
2. Patients are usually directed to swish and swallow or swish and spit

Question 13

Parenteral Medications

Answer 13

1. Sterile products administered by injection or infusion in order to bypass the gastrointestinal tract
2. Administration involves the use of a need to penetrate the skin
3. Bypassing the skin disrupts the body’s major defense against injection

Question 14

Inhalation Solutions

Answer 14

1. Placed in a nebulizer to provide topical application of medication to the respiratory tract