Ear Medication Flashcards
What are the clinical signs of otitis externa
Shaking of the head, scratching of the ears, malodor of the ear canal, stenosis of the ear canal
What are the five most common diseases that cause otitis externa
Atopy, food allergy, seborrhea, earmites, foreign body
What is atopy
Inhaling allergy categorized by scratching, Paw licking, face rubbing.
What is a food allergy
And allergy due to hyper sensitivity of certain foods and food additives
What is seborrhea
Categorized by the excessive production of oil in the skin and the formation of greasy or dry scaly skin.
What is ear mites
A parasite which commonly causes the onset of otitis externa
What types of yeast are found in otitis externa
Malassezia and candida
What type of bacteria are found in otitis externa
Staphylococcal or streptococcal
What is the benefits of topical otic anti-infective agents
Antibacterial or antifungal properties. Often contain anti-inflammatory agents that reduce inflammation and decrease pruritis
What is special about gentocin preparations
Possible ototoxicity because gentamicin is an aminoglycoside. Do not use in the presence of ruptured eardrum’s
What is a common anesthetic contained in ear products
Tetracaine
What is a squalane
Enhances the product by speeding up percutaneous penetration of the active ingredients
What is the clinical use for chloramphenicol
Include treatment for acute otitis media externa and pyoderma in dogs and cats
What is something that special about Chloramphenicol
Cannot be used in animals raised for food production
What is one of the adverse side effects for neomycin
Ototoxicity. Do not use in presence of ruptured ear drum
What are the four acids generally used as a drying agent in ear cleaners
Tannic acid, salicylic acid, acetic acid, boric acid.
What can drying agents contain
An antimicrobial or a corticosteroids
What is lactic acid used for
Antibacterial and Keratolytic. Lactic acid is thought to diminish corneocyte adhesion by interfering with the formation of ionic bonds.
What is salicylic acid used for
Antibacterial and Keratolytic. It is believed that salicylic acid solubilizes cell surface proteins resulting in desquamantion of Keratolytic debris.
What is pcmx used for
Broad spectrum germicide that has bacterial properties.
What is sodium docusate
An effective wax and debris emulsifier.
What is propylene glycol used for
Serves as a vehicle and also acts as a humectant by adding water to the stratum corneum
What is a spherulite
Allows for slow release of product to prolong effects of active ingredients.
Why would you do an ear flush
Flushing earwax remover’s debris, allows medication to contract the skin, allows visualization of the ear drum.
What is tris edta used for
Removes calcium and magnesium ions from the covering of gram negative organisms causing the penetration of antiinfectives.
What is otitis externa
Inflammation of the external auditory canal. Most common ear disease found in household pets
