If your dog has been shaking its head, scratching at its ears, or showing signs of discomfort, a veterinarian may recommend Surolan for dogs as part of the treatment plan. Surolan is a topical otic suspension that combines three active ingredients to address ear infections caused by susceptible yeast and bacteria. With more than three decades of clinical use, this medication has become a familiar option for veterinarians managing canine otitis externa, one of the most common reasons dogs are brought in for ear-related concerns.
What Is Surolan and How Does It Work?
Surolan (miconazole nitrate, polymyxin B sulfate, prednisolone acetate) is a topical formulation designed specifically for use in the ear canal. Each of its three active ingredients plays a distinct role: miconazole nitrate targets fungal organisms, polymyxin B sulfate works against certain bacteria, and prednisolone acetate helps reduce inflammation and associated discomfort. Because these ingredients work together rather than relying on a single mode of action, the product is often described as offering a well-rounded approach to ear infection management.
Which Ear Infections Does Surolan Treat?
Surolan is indicated for the treatment of canine otitis externa associated with susceptible strains of yeast, specifically Malassezia pachydermatis, and bacteria, specifically Staphylococcus pseudintermedius. These are two of the microorganisms most frequently implicated in dog ear infections, particularly in breeds with floppy ears, dogs that swim often, or those prone to allergies. A veterinarian typically confirms the presence of these organisms through an ear cytology exam before prescribing a topical treatment like Surolan, ensuring the medication is appropriate for the specific infection.
Why Veterinarians Continue to Choose Surolan
Cost and clinical familiarity often play a role in treatment decisions, and Surolan has built a reputation on both fronts. It is generally considered a cost-effective option for pet owners, while its distinct three-ingredient combination gives veterinarians a single product that addresses fungal, bacterial, and inflammatory components of otitis externa at once. Because the formulation has been used clinically for more than 30 years, many veterinarians are already familiar with how it performs across different cases, which can make prescribing decisions more straightforward.
How Surolan Is Dosed and Administered
Following a veterinarian’s prescription, Surolan is typically applied as five drops per affected ear, twice daily, for seven consecutive days. Because it is administered at home rather than requiring repeated clinic visits, owners are able to manage the full treatment course themselves once instructed on proper technique. Cleaning the ear canal gently before application, as directed by the prescribing veterinarian, can help the medication reach the affected tissue more effectively.
Ease of At-Home Use
For many dog owners, the ability to treat an ear infection without daily clinic visits is a meaningful advantage. Surolan’s suspension format is designed to be simple to apply, and its short seven-day course means most dogs complete treatment within a single week. Consistency matters here: missing doses or stopping early, even if symptoms appear to improve, can allow the infection to persist or return.
Safety Considerations Every Owner Should Know
As with any prescription medication, Surolan carries specific precautions. It should not be used in dogs with a known perforated tympanum (eardrum) or alongside drugs known to cause ototoxicity, since this combination can increase the risk of hearing damage. If non-susceptible bacteria or fungi overgrow during treatment, a veterinarian may need to discontinue Surolan and switch to a different therapy. Long-term use of topical corticosteroids, including the prednisolone acetate in Surolan, has been associated with adrenocortical suppression and iatrogenic hypoadrenocorticism in dogs, so treatment duration should follow veterinary guidance closely. Additionally, the safety of Surolan in breeding animals has not been established, so owners of breeding dogs should discuss alternatives with their veterinarian.
Final Thoughts on Managing Canine Ear Infections
Ear infections can be uncomfortable for dogs and frustrating for the owners trying to help them, but a targeted, veterinarian-guided treatment plan makes a significant difference. Surolan for dogs offers a combination approach that addresses yeast, bacteria, and inflammation together, with a dosing schedule designed for easy at-home administration. As with any prescription otic medication, it should only be used under veterinary supervision, following a proper diagnosis and the full course of treatment as directed. If your dog is showing signs of ear discomfort, scheduling an exam with your veterinarian is the best first step toward relief.
References
- Elanco Animal Health. Surolan Product Label and Prescribing Information. Available at: elancolabels.com/us/surolan
- American Veterinary Medical Association (AVMA) – General guidance on canine otitis externa and topical otic therapies
- Veterinary Partner (VIN) – Overview of Malassezia pachydermatis and Staphylococcus pseudintermedius in canine ear infections