
Scratches (Triamcinolone Acetonide + Nystatin + Gentamicin Sulfate + DMSO) is a compounded formulation containing Triamcinolone Acetonide + Nystatin + Gentamicin Sulfate + DMSO, prepared by Mixlab for veterinary use. Available by prescription.
How to Apply Topical Cream to Your Pet
Topical creams are smooth, lotion-like medications applied to your pet’s skin to treat infections, wounds, or deliver medicine. Here’s a simple step-by-step guide:
This is a compounded preparation combining the active ingredients listed in the product name. In compounding practice, clinicians may consider a multi-ingredient preparation like this to address more than one aspect of a patient's physiology at once. Your veterinarian determines whether it is appropriate for your animal.
At a pharmacological level, each component functions through a specific mechanism. Triamcinolone acetonide acts as a synthetic glucocorticoid that binds to cytoplasmic receptors to modulate gene expression, leading to a decrease in the production of pro-inflammatory mediators. Nystatin is an antifungal that binds to ergosterol in fungal cell membranes, increasing permeability and causing cellular leakage. Gentamicin sulfate is an aminoglycoside antibiotic that irreversibly binds to the 30S ribosomal subunit of susceptible bacteria, inhibiting protein synthesis. Dimethyl sulfoxide (DMSO) acts as a potent solvent and carrier that facilitates the movement of these co-administered medications through the skin’s keratinized layers. Your veterinarian will determine if this combination is appropriate based on the appearance of the skin, the clinical history and the presence of any secondary complicationss.
This description reflects the general pharmacology of the active ingredient's drug class; your veterinarian determines whether this approach is appropriate for your animal.
Prescription only. Use only under the direction of a licensed veterinarian. This information is not a substitute for veterinary diagnosis, prescribing or monitoring. Compounded drugs are not approved by the FDA for safety or effectiveness.
Commonly observed effects of this topical medication include localized skin redness, peeling or a temporary change in skin sensitivity at the site of application. Because the formulation contains DMSO, owners may observe a garlic-like odor on the horse's breath or skin shortly after use, which is a characteristic physiological response to the carrier's metabolism. It is important to ensure the treated area is clean and free of other substances, as DMSO can facilitate the absorption of various topical contaminants. If you observe significant swelling, persistent skin irritation or signs of acute discomfort, contact your veterinarian promptly.
This medication is typically used with extra caution in pregnant or lactating mares, as systemic absorption of corticosteroids and aminoglycosides, though minimized with topical use, is a point of clinical consideration. Because gentamicin carries a potential risk of nephrotoxicity if significant systemic levels are reached, your veterinarian will carefully evaluate its use in horses with pre-existing kidney concerns. Protective gloves should be worn during administration to prevent accidental absorption by the person applying the medication. Ensure your veterinarian has a complete history of all current prescriptions before beginning therapy. Always follow the professional guidance provided by your veterinarian regarding the specific application technique and any necessary environmental management to support skin health. Always consult your veterinarian about the appropriate duration of use and whether your horse's competitive status requires a withdrawal period. Triamcinolone (a corticosteroid) is subject to detection in equine medication-testing programs and specific withdrawal times vary by jurisdiction and governing body.
Yes. Triamcinolone/nystatin/gentamicin/DMSO is a prescription medication and can only be dispensed by a licensed pharmacy upon receipt of a valid authorization from a licensed veterinarian. Mixlab verifies all prescriptions before any medication is prepared or sent to your home or stable.
Yes. Since this specific four-part blend is not available as a single commercial product, Mixlab's compounding team prepares it into specialized formats, such as topical ointments or liquids, based on your veterinarian's requirements. The decision to use a compounded preparation rests with the prescribing veterinarian.
Veterinarians may consider combining these ingredients so the preparation can act through more than one mechanism at once — here, it brings together antibacterial and antifungal actions in one preparation. Your veterinarian determines whether this multi-targeted approach is appropriate for your pet.
Owners should monitor for signs of localized irritation or persistent redness at the application site. It is also common to notice a garlic-like smell on the horse's breath or skin, which is a transient occurrence related to the way the body processes the DMSO in the formulation.