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Educational Articles

Dogs + Medications & Supplements

  • Dextromethorphan + Guaifenesin is given by mouth as a tablet and is used off label to reduce cough in dogs and cats or to treat compulsive behavior. Side effects are uncommon, but serious adverse reactions associated with this drug may occur without warning. Contact your veterinarian if you notice anything out of the ordinary.

  • Diazoxide is given by mouth and is used off label to treat low blood sugar associated with insulin-producing tumors of the pancreas. Give as directed by your veterinarian. Common side effects include drooling, lack of appetite, vomiting, and diarrhea. Do not use in pets that are allergic to it or thiazide diuretics, or in pets with low blood sugar due to anything other than a tumor. If a negative reaction occurs, please call your veterinary office.

  • Diclofenac ophthalmic is a topical nonsteroidal anti-inflammatory medication used to treat inflammatory eye conditions in cats, dogs, rabbits, avian species, and other animals. Diclofenac ophthalmic comes in liquid drop form.

  • Dinotefuran/permethrin/pyriproxyfen (brand name Vectra 3D®) is a topical (spot-on) antiparasitic drug that is applied directly to the skin. It is used to repel and kill fleas, ticks, mosquitoes, biting flies, sand flies, and biting/chewing lice in dogs and puppies that are at least 8 weeks of age and weigh at least 2.3 kg (5 lb). NEVER use in cats and avoid using in households with cats, if possible. Permethrin is poisonous to cats and any exposure may be fatal.

  • Dinotefuran/pyriproxyfen (brand name Vectra) is a topical (spot-on) antiparasitic drug used to repel and kill fleas in dogs and puppies that are at least 8 weeks of age and weigh at least 1.14 kg (2.5 lbs) and in cats and kittens that are at least 8 weeks of age and weigh at least 0.9 kg (2 lbs). Do not confuse this medication with Vectra 3D®, a similar product labeled for use in dogs only.

  • Diphenhydramine topical (brand name Benasoothe®) is an antihistamine with some local anesthetic properties. It is used to relieve itching and skin irritation in dogs, cats, and other animals. Diphenhydramine topical comes in a variety of forms, which may be specially compounded.

  • Diphenoxylate + atropine (brand name Lomotil) is an opioid combination medication used to treat diarrhea or coughing in dogs and diarrhea in cats. Its use in cats is not generally recommended. Diphenoxylate + atropine is given by mouth in the form of a tablet or liquid. This article discusses administration, potential side effects, risks, and monitoring.

  • Ear cleansing/drying products are used over-the-counter to treat and prevent ear infections in many species of pets. They come as a liquid solution that is used topically within the ear canal and are typically used in the ears after debris and wax have been removed using a cerumenolytic cleanser.

  • Enilconazole is a topical wash/dip used to treat dermatophytosis (ring worm) in dogs and sometimes in cats. Side effects are uncommon as it is relatively well-tolerated, but in cats may include drooling, vomiting, lack of appetite, weight loss, muscle weakness, and elevated liver enzymes. Do not use in cats unless directed by your veterinarian. If a negative reaction occurs, please call your veterinary office.

  • Enrofloxacin otic is applied topically and is labeled to treat ear infections in dogs. It is also used off-label to treat ear infections in cats. Give as directed. Side effects are rare but may include temporary hearing loss or skin reactions. Do not use with pets allergic to quinolones or sulfonamides, with young animals, or with those with central nervous system disorders. If a negative reaction occurs, please call the veterinary office.