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  • Medroxy progesterone acetate (MPA) is a hormone. It may be used in cats to treat behavior problems (i.e. roaming, inter male aggressive behavior, spraying, mounting), hair loss and inflammation of the skin. MPA may be used for other conditions as determined by your veterinarian.

  • If the nerves to the colon do not function normally, the muscles of the colonic wall will not contract properly. The muscles then become stretched and the colon enlarges in diameter. Rather than being pushed into the rectum in a normal manner, fecal material accumulates in the distended colon, resulting in severe constipation called obstipation. This massive enlargement of the colon and the resulting constipation is called megacolon. Megacolon is often treatable using a medical approach but some cases require surgical intervention called subtotal colectomy.

  • 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.

  • Meloxicam is a non-steroidal anti-inflammatory agent used to relieve pain and inflammation in cats. It is indicated for the treatment of osteoarthritis. Meloxicam has also been used to treat pain associated with surgery.

  • This handout summarizes the many options available to help celebrate your pet’s life and ways to help deal with your grief following the loss of your beloved pet.

  • 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.

  • Metaldehyde toxicity occurs when a dog (or a cat, less commonly) eats slug bait that contains metaldehyde. Signs of metaldehyde toxicity include vomiting, anxiety, ataxia (due to muscle incoordination), stiffness, muscle tremors, elevated heart rate and respiratory rate, increased salivation, and increased sensitivity to touch. These signs often progress to continuous muscle tremors and seizures. Prognosis is good with aggressive treatment.

  • Methazolamide (brand names Neptazane®, GlaucTabs®, Glaumetax®, MZM) is a carbonic anhydrase inhibitor used off label (extra label) to treat open angle glaucoma in dogs and cats. Do not use in pets that are allergic to it, have significant liver, kidney, or adrenal disease, have electrolyte imbalances, have severe obstructive lung disease, or have closed angle glaucoma.

  • Methimazole is used to lower the amount of thyroid hormone in the blood. This medication will not cure hyperthyroidism, but will help control the disease.

  • Methionine (brand name Methio-Form) is a nutritional supplement used to make urine more acidic in cats and dogs. Urine acidifiers help manage certain types of urolithiasis (urinary stones). Methionine comes in gel, chewable, powder, and tablet forms. Monitor urine pH and seek immediate veterinary care if signs of Heinz-body anemia appear in cats (pale gums, red-brown urine, weakness).