Overview
TOBREX® Sterile Ophthalmic Solution is a veterinary-grade antibiotic eye drop formulated by Novartis, designed to treat bacterial infections in the eyes of cats and dogs. Its active ingredient, Tobramycin, is a potent aminoglycoside antibiotic that targets a broad spectrum of Gram-positive and Gram-negative bacteria. This product is suitable for companion animals suffering from conjunctivitis, keratitis, blepharitis, and other ocular infections, and is often prescribed by veterinarians for short-term therapeutic use.
Key Benefits / Features
✅ Broad-spectrum antibacterial action against common ocular pathogens
✅ Rapid relief from symptoms such as redness, discharge, and swelling
✅ Sterile formulation ensures safety for sensitive eyes
✅ Easy-to-administer dropper bottle for precise dosing
✅ Trusted by veterinarians for post-surgical prophylaxis and acute infections
Ingredients
-
Active Ingredient:
- Tobramycin 0.3% (3 mg/mL)
-
Inactive Ingredients:
- Benzalkonium chloride (preservative)
- Sodium chloride
- Sulfuric acid and/or sodium hydroxide (for pH adjustment)
- Purified water
Nutritional Composition / Active Ingredients
| Component |
Concentration per mL
|
| Tobramycin |
3 mg (0.3%)
|
|
Benzalkonium chloride
|
~0.01% |
| Volume |
5 mL bottle
|
Uses / Indications
- TOBREX® is indicated for:
- Treatment of bacterial conjunctivitis
- Management of keratitis and blepharitis
- Post-operative prophylaxis following ocular surgery
- Control of secondary bacterial infections in inflamed eyes
Note: This product is not effective against viral or fungal infections.
-
Dosage
- Typical dosage: 1–2 drops into the affected eye(s) every 4–6 hours
- In severe infections: every 2 hours during waking hours
- Duration: 5–7 days, or as directed by a veterinarian
-
Administration Tips:
- Wash hands before and after use
- Avoid touching the dropper tip to any surface or the animal’s eye
- Shake gently before use if instructed
Possible Side Effects
- Mild burning or stinging upon application
- Hypersensitivity reactions (e.g. redness, itching, swelling)
- Superinfection with prolonged use
- Rare: Ototoxicity if absorbed systemically in high doses
Drug & Food Interactions
- No known food interactions
- Use with caution alongside other aminoglycoside antibiotics (e.g. gentamicin)
- Avoid concurrent use with other topical ophthalmic medications unless prescribed
Precautions
- For external ophthalmic use only
- Do not use in animals with known hypersensitivity to aminoglycosides
- Avoid use in viral or fungal eye infections
- Store at room temperature (15–25°C)
- Discard 28 days after opening
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IMPORTANT NOTICE - THIS IS A PRESCRIPTION ONLY MEDICATION (POM)
POMs are stored and dispensed directly from Ohana Animal Hospital under veterinary supervision.
As required by law, orders for this product will only be processed and delivered after our veterinary team has reviewed your pet's prescription and medical history, who may contact you or your existing vet for more details. Clients are encouraged to Autoship this product to avoid unnecessary delays.
Don't have a prescription? Use our VetCare Rebate program to enjoy $400 off when you renew your prescription.
