External solution Flashcards
What is a solution in pharmaceutical terms?
A one-phase system consists of two components, solute and solvent
What is liniment?
A liquid preparation intended for external use, applied to skin with friction to obtain analgesic or stimulating effect
Uses of lotion?
- antiseptic
- parasiticidal
- soothing purposes
What’s the difference between liniment and lotion?
Liniments applied with friction and may contain alcohol or oils, while lotions applied without friction and can be solutions, suspension, emulsions
What are collodion used for?
a solutions of a polymer in a volatile organic solvent, for treatment of corns, calluses
What are gargles used for?
To relieve sore throats
What mouthwashes used to?
clean, deodorize buccal cavity
What in an enema?
An oily or aqueous solution administered rectally for local or systemic drug action
What is a douche?
An aqueous solunon used for rinsing or irrigating body cavities,functioning as a cleansing or antiseptic agent
? general method of preparation for solutions?
- Wire out formula
- Calculate quantities
- Prepare label
- Weigh solids
- Dissolve solids in vehicle
? general method of preparation for solutions?
- Wire out formula
- Calculate quantities
- Prepare label
- Weigh solids
- Dissolve solids in vehicle
What are the labelling requirements for external use of products?
indicate ‘ For External Use Only’ include the name of the preparation, strength, and instructions for use
What are the common solvents Used in pharmaceutical solutions?
- Water
- Alcohol
- Glycerol
- propylene glycol
what in the role of preservatives in multidose products?
inhibit the growth of microorganisms introduced during product use
what are the examples of active ingredients in liniment?
- Turpentine oil
- Methyl salicylate
What is the purpose of humectants in lotions?
To retain moisture on the skin after applications
What are the common excipients added to lotions?
fragrances, glycerol, petroleum jelly, dyes, preservatives and stabilizing agents
What In the function of a throat paint?
viscous liquid preparations used for mouth and throat infections
What are the characteristics of mouthwash?
An aqueous solution with a pleasant taste and odor used to clean and deodorize the buccal cavity
What are the storage conditions for external use products?
- keep out of reach of children
- protect from light
- follow specific storage instructions
What is the significance of using fluted bottles for external preparations?
to distinguish external preparations from those meant for internal use
What is the role of alcohol in liniments?
helps in the penetration of medicaments into the skin and increases their counterirritant action
what is the difference between therapeutic and cosmetic mouthwashes?
Therapeutic mouthwashes reduces plaque, while cosmetic mouthwashes reduce bad breath
What’s the importance of using a mortar and pestle in solution preparation ?
used to reduce particle size to aid dissolution
