Ointments Flashcards
(16 cards)
What is an occlusive layer?
It prevents the loss of moisture
What is an emollient?
An emollient moisturizes and softens
What is an ointment?
It is a semisolid dosage form that is made up of greasy bases intended for topical use
Where may ointments be applied?
Topically,nasally,rectally, on mucosal membranes
Advantages of ointments?
Acts as an occlusive layer and is easily spread over the skin,protects therapeutic agents prone to hydrolysis, has emollient properties, is water resistant
Disadvantages of ointments
Can stain clothes,greasy and difficult to remove, viscosity may make spreading of ointments difficult , problems may arise if drug has limited solubility
Other semisolid drug forms?
Creams,gels,pastes,plaster,suppsitories
What is meant by the term astringent?
Causes cells to shrink
Ideal characteristics of well formulated ointments
Free from grittiness, no lumps,uniform texture, no separation of individual components
Another name for semisolid dosage forms
Unguents, dermatologicals
Where do lotions treat?
Intertriginous areas of the body
Where do ointments treat?
Dry scaly lesions
What do creams treat ?
Moist weeping areas
Ointments are not hydrophobic,true or false
False
Name all the ointment bases
Oleaginous,water removable, water soluble and absorption
Another name for water removable bases?
Emulsion bases
