PHA 619 LAB Aromatic Waters, Solutions, and Syrups Flashcards
Liquid preparation, which contains one or more substances
dissolved in a suitable solvent
Solutions
Advantages of Solutions:
Mnemonic: CIF
- Completely homogenous base
- Immediate availability for absorption
- Flexibility (dose, route)
Simplest and most common liquid preparation
Solutions
Disadvantages of Solutions:
Mnemonic: DM
- Degrade more rapidly
- More likely to interact with constituents
Solubility: Parts of Solvent Required for 1 Part of Solute
Term: Very Soluble
<1
Solubility: Parts of Solvent Required for 1 Part of Solute
Term: Freely Soluble
1-10
Solubility: Parts of Solvent Required for 1 Part of Solute
Term: Soluble
10-30
Solubility: Parts of Solvent Required for 1 Part of Solute
Term: Sparingly Soluble
30-100
Solubility: Parts of Solvent Required for 1 Part of Solute
Term: Slightly Soluble
100-1,000
Solubility: Parts of Solvent Required for 1 Part of Solute
Term: Very Slightly Soluble
1,000-10,000
Solubility: Parts of Solvent Required for 1 Part of Solute
Term: Insoluble
> 10,000
Most commonly used solvent
Water
Type of Water:
Obtained by distillation, ion-exchange, reverse osmosis, etc.
Purified Water, USP
Type of Water:
Used in preparation of aqueous dosage forms EXCEPT for parenterals
Purified Water, USP
Type of Water:
Purified water FREE of pyrogens
Water for injection, USP
Type of Water:
Obtained by distillation or reverse osmosis
Water for injection, USP
Type of Water:
Used for parenteral that are to be sterilized after preparation
Water for injection, USP
Type of Water:
Used for already sterilized and packaged medication
Sterile water for injection, USP
Type of Water:
SWFI that contains antimicrobial agent
Bacteriostatic water for injection, USP
Type of Water:
Not for parenteral
Sterile water for Inhalation, USP
Type of Water:
WFI sterilized and suitably packaged
Sterile water for Irrigation, USP
Type of Water:
“For irrigation use only, not for injection”
Sterile water for Irrigation, USP
Type of Water:
Agua Oxinada
Sterile water for Irrigation, USP
Type of Water:
Burrow’s Solution (Aluminum Acetate Solution)
Sterile water for Irrigation, USP
Two Examples of Aqueous Liquids: Aromatic Water
Cinnamon Water and Concentrated Peppermint Water
Clear saturated aqueous solution of volatile oil or other aromatic or volatile substance
Aromatic water
Odors or taste are the same as those of the drug or volatile
substance from which they are prepared and should be free
from empyreumatic and other foreign odor
Aromatic water
Generally used as flavored and perfumed vehicle
Aromatic water
Volatile substances used should be of pharmacopeial quality or
the best quality if finest flavor is desire in case of unofficial
preparation
Aromatic water
Stability of Aromatic Water
Mnemonic: 2P2D
Preparations are not permanently stable
Protection from excessive light and heat
Deterioration may be due to volatilization
Decomposition/ mold growth/ producing cloudy preparation/ disagreeable odor
Slowest, most expensive method but the most satisfactory method of preparation
Distillation Preparation
Example of aromatic water that underwent through distillation process
Strong rose water
Type of distillation when distillate is returned several times to distill with fresh portions of flower
Cohobation
Double distillate, triple or quadruple minimizes ______
loss of water-soluble components
Orange/ Rose flowers
Cohobation
The most frequently employed process of preparing aromatic water
Alternate Solution Method
True or False: The dispersing agent decreases the surface of volatile substance ensuring more rapid saturation of water and forms an efficient filter bed thus producing a turbid solution
False
The dispersing agent INCREASES the surface of volatile substance ensuring more rapid saturation of water and forms an efficient filter bed thus producing a CLEAR solution
Examples of Distilled Beverages
Mnemonic: BRWW
Brandy - distilled wine
Rhum - molasses
Wine - mild stimulant and tonic
Whiskey - malted grain
Brandy: ___
distilled wine
Rhum: ___
molasses
Wine: ___
mild stimulant and tonic
Whiskey: ___
malted grain
A method that saves time and equipment but do not agitate when drawing aromatic water if the excess volatile oil is allowed to remain
Direct Solution Method
Liquid preparation that contain one or several soluble chemical substance dissolve in suitable solvent or mixture of mutual miscible liquids
Solution
Two components of Solution
Solvent and Solute
The one that is being dissolves
Solute
The one that dissolves
Solvent
Prepared by dissolving the solute in a suitable solvent
Simple Solution
Examples of simple solutions
NaCl solution, Strong Iodine Solution