Articles
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Medroxyprogesterone acetate (brand names: Provera®, Meprogest®, Proclim®) is a progestin hormone used to treat sexually driven behavior problems in cats, such as male-male aggression, spraying, roaming, and mounting. In dogs, it has been used for conditions including certain dwarfisms, skin conditions, reproductive conditions, and behaviors.
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Megacolon is extensive stretching of the colon and resulting constipation. It occurs when the nerves to the colon do not function normally, causing the muscles of the colonic wall to not contract properly. The muscles then become stretched over time and the colon enlarges in diameter. Fecal material accumulates in the distended colon, resulting in severe constipation called obstipation.
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Megaesophagus is a disorder in which the esophagus dilates and loses motility. When esophageal motility is decreased or absent, food and liquid accumulate in the esophagus and have difficulty getting into the stomach. Regurgitation is the most common sign of megaesophagus. Weight loss or failure to gain weight, as well as aspiration pneumonia, are also common signs. Treatment is focused on managing the symptoms.
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Megestrol acetate is given by mouth in the form of a tablet or liquid and is used in dogs or off label in cats to postpone the heat cycle or to treat false pregnancy. It can also be used off label in male dogs to treat prostatic hypertrophy. It should not be used in pregnant pets or pets with uterine disease, diabetes, or breast tumors.
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Melanomas are cancerous growths of the cells responsible for pigmentation of the skin. They can develop anywhere on the body but those on the toes carry the highest chance for malignancy. They may be painful and you may notice your pet licking at the affected area. Surgery is often the treatment of choice and may be followed up with radiation or chemotherapy.
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Melatonin (brand names: Regulin, Circadin) is a hormone supplement commonly used in humans to regulate the sleep cycle. In veterinary medicine, it is used off label to treat a variety of conditions, including sleep and behavior disorders in dogs and cats, non-allergic hair loss (alopecia) in dogs, and adrenal disease in ferrets. It also may be used to suppress the heat cycle (estrus) in cats.
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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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Losing a pet is difficult. Take time to grieve, focusing on the good things you shared with your pet. This handout discusses memorial ideas that can help you remember the good times and celebrate your pet’s life.
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This handout discusses meningitis, an inflammation of the membranes that cover the brain and spinal cord, in cats. The numerous potential causes, along with the diagnosis, treatment and prognosis of the condition are outlined.
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Meropenem is an antibiotic used to treat multi-drug-resistant bacterial infections in cats and dogs, particularly infections caused by extended-spectrum beta-lactamase-producing Enterobacterales or Pseudomonas aeruginosa. Its use in veterinary medicine is limited to susceptible infections with documented resistance to other antimicrobials. Its use is off label in veterinary medicine. Meropenem comes in an injectable form.