Osurnia
terbinafine, florfenicol, betamethasone
Marketing authorisation holder:
Dechra Regulatory B.V., Handelsweg 25, 5531 AE Bladel, The Netherlands
Manufacturer responsible for batch release:
Argenta Dundee Limited, Kinnoull Road, Dunsinane Industrial Estate, Dundee DD2 3XR, UNITED KINGDOM
Genera Inc., Svetonedeljska cesta 2, Kalinovica, 10436 Rakov Potok, Croatia
OSURNIA ear gel for dogs terbinafine/florfenicol/betamethasone acetate
One dose (1.2 g) contains 10 mg terbinafine, 10 mg florfenicol and 1 mg betamethasone acetate Excipient: 1 mg butylhydroxytoluene (E 321)
Off-white to slightly yellow translucent gel.
Treatment of acute otitis externa, and acute exacerbation of recurrent otitis externa associated with
Staphylococcus pseudintermedius and Malassezia pachydermatis.
Do not use in case of hypersensitivity to the active substances, to other corticosteroids, or to any of the excipients.
Do not use if the eardrum is perforated.
Do not use in dogs with generalised demodicosis (demodectic mange). Do not use in pregnant or breeding animals.
Deafness or impaired hearing, usually temporary, have been reported after use in very rare cases in dogs, mainly in elderly animals, in post authorisation experience.
Application site reactions (i.e. erythema, pain, pruritus, oedema and ulcer) have been reported in very rare cases, in post authorisation experience.
Hypersensitivity reactions including facial oedema, urticaria and shock have been reported in very rare
cases, in post authorisation experience.
The frequency of adverse reactions is defined using the following convention:
very common (more than 1 in 10 animals treated displaying adverse reaction(s))
common (more than 1 but less than 10 animals in 100 animals treated)
uncommon (more than 1 but less than 10 animals in 1,000 animals treated)
rare (more than 1 but less than 10 animals in 10,000 animals treated)
very rare (less than 1 animal in 10,000 animals treated, including isolated reports).
If you notice any side effects, even those not already listed in this package leaflet or you think that the medicine has not worked, please inform your veterinary surgeon.
Dogs.
Auricular use. Administer one tube per infected ear. Repeat the administration after 7 days. The maximum clinical response may not be seen until 21 days after the second administration.
Open the tube by twisting the soft tip.
Introduce this flexible soft tip into the ear canal.
Apply the product into the ear canal by pressing it between two fingers.
After application, the base of the ear may be massaged briefly and gently to facilitate even distribution of the veterinary medicinal product into the ear canal.
Before the veterinary medicinal product is applied, the external auditory canal must be examined thoroughly to ensure that the ear drum is not perforated.
Clean the ears before the initial treatment is applied. Ear cleaning should not be repeated until 21 days after the second administration. In clinical trials, saline only was used for ear cleaning.
If treatment with this product is discontinued, the ear canals should be cleaned before treatment with an alternative product is initiated.
Not applicable.
Keep out of the sight and reach of children. Store in a refrigerator (2 C – 8 C).
Do not use this veterinary medicinal product after the expiry date which is stated on the label after EXP. The expiry date refers to the last day of that month.
Special warnings for each target species:
Clean the ears before the initial treatment is applied. Ear cleaning should not be repeated until 21 days after the second administration. In clinical trials, saline only was used for ear cleaning.
Transient wetness of the inner and outer pinna can be observed. This observation is attributed to presence of product and is not of clinical concern.
Bacterial and fungal otitis is often secondary to other conditions. Appropriate diagnosis should be used and therapy of causative conditions should be investigated before antimicrobial treatment is
considered.
In animals with a history of chronic or recurrent otitis externa, efficacy of the product may be affected if the underlying causes of the condition such as allergy or anatomical conformation of the ear are not addressed.
Special precautions for use in animals:
If hypersensitivity to any of the components occurs, the ear should be thoroughly washed.
The safety of the product has not been established in dogs less than 2 months of age and weighing less than 1.4 kg.
Whenever possible the use of the veterinary medicinal product should be based on identification of infecting organisms and susceptibility testing.
Use of the veterinary medicinal product deviating from the instructions given in the package leaflet may increase the prevalence of bacteria resistant to florfenicol and fungi resistant to terbinafine, and
may decrease the effectiveness of treatment with other antibiotics and antifungal agents.
In case of parasitic otitis, an appropriate acaricidal treatment should be implemented.
Before the veterinary medicinal product is applied, the external auditory canal must be examined thoroughly to ensure that the ear drum is not perforated.
Prolonged and intensive use of topical corticosteroids preparation is known to trigger systemic effects, including suppression of adrenal function (see section Overdose).
Decreased cortisol levels were observed after product instillation in tolerance studies (before and after ACTH stimulation), indicating that betamethasone is absorbed and enters the systemic circulation. The finding was not correlated with pathological or clinical signs and was reversible.
Additional corticosteroid treatments should be avoided.
Use with precaution in dogs with suspected or confirmed endocrine disorder (i.e. diabetes mellitus; hypo- or hyper-thyroid disease, etc.).
The veterinary medicinal product may be irritating to eyes. Avoid accidental contact to the dog’s eyes. If accidental ocular exposure does occur, the eyes should be flushed thoroughly with water for 10 to 15 minutes. If clinical signs develop, seek veterinary advice.
In very rare cases, eye disorders such as keratoconjunctivitis sicca and corneal ulcers have been reported in treated dogs, in absence of eye contact with the product. Although a causal relationship with veterinary medicinal product was not definitively established, owners should be recommended to monitor ocular signs (such as squinting, redness and discharge) in the hours and days following the product application, and to promptly consult a veterinarian in case such signs appear.
The safety and efficacy of the veterinary medicinal product in cats has not been evaluated. Post- marketing surveillance shows that the use of the product in cats can be associated with neurological signs (including Horner’s syndrome with protrusion of membrane nictitans, miosis, anisocoria, and internal ear disorders with ataxia and head tilt) and systemic signs (anorexia and lethargy). The use of the veterinary medicinal product in cats should therefore be avoided.
Special precautions to be taken by the person administering the veterinary medicinal product to animals:
The veterinary medicinal product may be irritating to eyes. Accidental eye exposure may occur when the dog shakes its head during or just after administration. To avoid this risk for the owners, it is recommended that this veterinary product is administered only by veterinarians or under their close supervision. Appropriate measures (e.g. wearing safety glasses during administration,
massaging the ear canal well after administration to ensure even distribution of product, restraining
the dog after administration) are needed to avoid exposure to the eyes.
In case of accidental ocular exposure, flush the eyes thoroughly with water for 10 to 15 minutes. If symptoms develop, seek medical advice and show the package leaflet or the label to the physician.
In case of accidental skin contact, wash exposed skin thoroughly with water.
In case of accidental ingestion by humans, seek medical advice immediately and show the package leaflet or the label to the physician.
Pregnancy and lactation:
Betamethasone is known to be teratogenic in laboratory species. The safety of this medicine has not been established in pregnancy and lactating bitches. Do not use during pregnancy and lactation.
Fertility:
Do not use in breeding animals.
Interaction with other medicinal products and other forms of interaction: Compatibility with ear cleaners, other than saline, has not been demonstrated.
Overdose (symptoms, emergency procedures, antidotes):
Prolonged or intensive use of the product may cause blistering of the tympanic membrane epithelium or mucosal ulceration in the lining of the middle ear cavity. These findings don’t affect hearing and are reversible.
Prolonged and intensive use of topical corticosteroids preparation is known to trigger systemic effects, including suppression of adrenal function.
Medicines should not be disposed of via wastewater or household waste.
Ask your veterinary surgeon, pharmacist how to dispose of medicines no longer required. These measures should help to protect the environment.
This product is a fixed combination of three active substances: antibiotic, antifungal and corticosteroid.
OSURNIA ear gel for dogs is available in the following pack sizes: 1 cardboard box containing 2 tubes,
1 cardboard box containing 12 tubes
1 cardboard box containing 20 tubes
1 cardboard box containing 40 tubes Not all pack sizes may be marketed.
For any information about this veterinary medicinal product, please contact the marketing authorisation holder.