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Educational Articles

Medications & Supplements

  • Tacrolimus ophthalmic is applied to the eye and is used off label to treat KCS (dry eye) and other immune-mediated and inflammatory conditions of the eye. Give as directed. Side effects are not common but may include irritation, eyelid twitches, or hair loss around the eye. Do not use in pets that are allergic to it or have a viral or fungal infection in the eye. If a negative reaction occurs, please call your veterinary office.

  • Tadalafil is given by mouth or injection and is used off label to treat high blood pressure in the lungs. Give as directed. Side effects may include vomiting, diarrhea, decreased appetite, or skin redness in the groin area. Do not use in pets that are allergic to it or pets that take nitrate medications. If a negative reaction occurs, please call the veterinary office.

  • Taurine is given by mouth in the form of a capsule, tablet, powder, or liquid and is used as an over the counter nutritional supplement to treat taurine deficiency, dilated cardiomyopathy, and prevent retinal degeneration. Give as directed by your veterinarian. Side effects are rare but may include vomiting. There are no known contraindications to using this supplement. If a negative reaction occurs, please call your veterinary office.

  • Terbinafine oral tablets or granules are commonly used off label to treat skin or systemic fungal infections in dogs and cats. Common side effects are primarily gastrointestinal such as vomiting, inappetence, and diarrhea, and should be used with caution in patients with liver or kidney disease. If treating with this medication long-term, your veterinarian will perform periodic blood tests to check liver function and monitor for any changes or elevations. If you suspect an overdose or an adverse reaction to the medication, call your veterinary office immediately.

  • Terbinafine cream or spray is occasionally used off label to treat skin fungal infections in dogs, or in a veterinary combination product to treat ear infections. When given as directed, side effects are rarely noted, but could include skin irritation. It is ineffective for treating fungal skin infections in cats. Your veterinarian may monitor your pet to be sure that the medication is working. If you suspect an overdose or an adverse reaction to the medication, call your veterinary office immediately.

  • Tetracycline is given by mouth and is used off label to treat bacterial infections and inflammatory skin conditions in many animal species. The most common side effects include nausea, vomiting, diarrhea, and lack of appetite. Do not use in pets that are allergic to it or other tetracycline antibiotics, or in pregnant animals, especially in the first half of pregnancy. If a negative reaction occurs, please call your veterinary office.

  • Theophylline is used off label to treat cough caused by bronchoconstriction. It is given by mouth in the form of a tablet or liquid, or in hospital as an injection. The most common side effects include stomach upset and excitement. It should be used with caution in pets with abnormal heart rhythms, seizures, stomach ulcers, hyperthyroidism, kidney, liver, or heart disease, severely high blood pressure, severely low blood oxygen levels, or in young, old, or pregnant or lactating pets. If a negative reaction occurs, please call your veterinary office.

  • Tobramycin ophthalmic is an antimicrobial medication used to treat eye infections in cats, dogs, and exotic companion animals. Tobramycin ophthalmic comes in ointment and liquid drop suspension form. Caution when using this medication in pets with kidney disease and/or glaucoma. Do not confuse this medication with combination products containing tobramycin and a steroid.

  • Toceranib phosphate is given by mouth and is used on and off label to treat mast cell tumors and other cancers in cats and dogs. Common side effects include diarrhea, decreased or lack of appetite, lameness, or weight loss. Do not use in pets that are allergic to it, are breeding, pregnant, or lactating, are less than 24 months old, weigh less than 11 lbs (5 kg), or that are having or have had surgery in the past 2 weeks. If a negative reaction occurs, please call your veterinary office.

  • Tramadol is a synthetic opioid given by mouth in the form of a tablet, capsule, or compounded liquid, and is used off label to treat pain. Common side effects include sedation, gastrointestinal upset, or agitation. It should not be used in pets that are hypersensitive to opioids, and should be used cautiously in geriatric, sick, or pets with seizures. If a negative reaction occurs, call your veterinary office.