Illustrated Articles
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Loperamide is given by mouth and is used off label to treat signs of diarrhea. Give as directed by your veterinarian. Common side effects include constipation, bloat, and sleepiness. Do not use in pets that are allergic to it, that have diarrhea due to an infection or a toxin, or that are positive for the MDR1 gene. If a negative reaction occurs, please call your veterinary office.
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Marbofloxacin is given by mouth and is used on and off label to treat certain bacterial infections including leishmaniasis, tuberculosis, and hemoplasmosis. Common side effects include vomiting, diarrhea, and lack of appetite. Do not use in pets that are allergic to it or other quinolones, or in small and medium breed dogs before 8 months of age, in large breed dogs before 12 months of age, in giant breed dogs before 18 months of age, or in cats before 12 months of age. If a negative reaction occurs, please call your veterinary office.
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Meclizine (brand names Antivert®, Dramamine® Less Drowsy Formula, Bonine®, Bonamine®, Postafen®, Univert®) is an antihistamine used off label to prevent and treat motion sickness and vomiting associated with it, in cats, dogs, and other small mammals. The most common side effect is sedation and sleepiness.
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Melatonin is given by mouth or as an implant under the skin and is used to treat sleep and behavior disorders, adrenal disease, and non-allergic hair loss, to suppress the heat cycle, and to improve breeding rates. Give as directed. Side effects are not common but may include sleepiness. Do not use in pets that are allergic to it. If a negative reaction occurs, please call your veterinary office.
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Meloxicam (brand names Metacam, Meloxidyl, Loxicom, OroCAM) is given by mouth in the form of a liquid, capsule, or tablet to treat pain and inflammation in dogs, cats, and other small mammals. Do not use this medication in pets that are allergic to it, or in pets concurrently using corticosteroids or other NSAIDs. If a negative reaction occurs, call your veterinary office.
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Methimazole (brand names Tapazole®, Felimazole®, Felanorm®) is an antithyroid medication used to treat hyperthyroidism in cats. It is given by mouth or applied topically to the skin. Common side effects include vomiting, anorexia, and tiredness, but more severe side effects are possible. It is contraindicated in pregnant or nursing pets, as well as in cats with autoimmune disease, liver or kidney disease, and/or blood and clotting diseases.
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Metoclopramide is given by mouth or injection and is used off-label to treat gastrointestinal motility disorders, nausea, and vomiting in dogs, cats, and other animals. Give as directed. Side effects are uncommon but may include restlessness, hyperactivity, muscle twitches, drowsiness, and increased urination. Do not use in pets with intestinal blockage or bleeding, pseudopregnancy, pheochromocytoma, or a history of seizures or head trauma. If a negative reaction occurs, contact your veterinarian.
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Metronidazole is given by mouth or injection and is used off-label to treat certain anaerobic bacterial and protozoal infections and gastrointestinal conditions in dogs, cats, and other animals. Give as directed. Side effects may include nausea, vomiting, diarrhea, regurgitation, decreased appetite, tiredness, and drooling. Do not use in pets that are allergic to it, are debilitated, or are pregnant or nursing. If a negative reaction occurs, contact your veterinarian.
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Miconazole otic is an antifungal used in the treatment of external ear infections (otitis externa) caused by fungal organisms in cats, dogs, and other animals. It may be specially compounded and/or combined into a formulation with other medications. Miconazole otic comes in ointment or liquid drop suspension forms that may be specially compounded.
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Midazolam is a benzodiazepine used for its sedative, anti-anxiety, and muscle relaxant properties. It is primarily used as a sedative before surgery and to stop seizures. It is used “off label” or “extra label” in animals. This medication is a controlled substance primarily given via injection by your veterinary team, though it may be prescribed to your pet for intranasal or intrarectal administration at home.
