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Educational Articles

Medications & Supplements

  • Leuprolide is given by injection and is used off label in ferrets and birds to treat reproductive and adrenal problems. Give as directed. Side effects in ferrets may include pain at the injection site, breathing difficulties, and sleepiness. Do not use in pets that are allergic to it or other gonadotropin-releasing hormones, and do not use in pregnant or nursing pets. If a negative reaction occurs, please call the veterinary office.

  • Lidocaine/lidocaine combinations topical are local anesthetics that provide anesthesia (a numbing effect) to the skin in cats, dogs, and other animals. Combination products may contain other local anesthetics, antibiotics or antimicrobials, steroids, antihistamines, and/or cleansing agents.

  • Lokivetmab is given by injection and is used on and off label to treat itchiness in dogs. Give as directed. Side effects are uncommon but may include vomiting, diarrhea, sleepiness, lack of appetite, or pain at the injection site. Do not use in pets that are allergic to it. If a negative reaction occurs, please call the veterinary office.

  • Lorazepam (brand names Ativan®, Lorazepam Intensol®) is a benzodiazepine medication used off label to treat behavior problems such as anxiety, fears, and phobias in cats and dogs. It can also be used to treat seizures or to stimulate appetite in cats. It is given by mouth or injection. Do not use in pets that are allergic to it or other benzodiazepines, or that have severe breathing problems, or liver disease. If a negative reaction occurs, please call your veterinary office.

  • Lotilaner is used to treat and prevent flea infestations and treat and control tick infestations in dogs and cats. After being administered to a pet, lotilaner is distributed throughout the body. When fleas or ticks bite the dog or cat, they are exposed to the drug and killed during their blood meal.

  • Low molecular weight heparin is given by injection under the skin and is used off label to treat abnormal blood clots. Give as directed. Side effects may include pain at the injection site. Do not use in pets that are allergic to any type of heparin or pork products. If a negative reaction occurs, call the veterinary office.

  • 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.

  • 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.

  • 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.

  • 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).