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  • Lotilaner + moxidectin + praziquantel + pyrantel (brand name Credelio Quattro®) is a combination antiparasitic used to protect against ticks, fleas, heartworm disease, roundworms, hookworms, and tapeworms in dogs and puppies 8 weeks of age and older and weighing at least 3.3 lb (1.5 kg). It comes in a chewable tablet to be given monthly. Its use is currently only approved for dogs.

  • This cheerful dog has become a hit with folks who want a merry companion to accompany them on short and long jaunts. With their unique appearance and chipper personality, they always draw attention.

  • Lufenuron is a medication that controls flea infestations in dogs, cats, rabbits, and ferrets. It is given by mouth in the form of a tablet or liquid to dogs, cats, rabbits, and ferrets. It may also be given by injection to cats. Side effects are uncommon but may include vomiting, diarrhea, lack of appetite, tiredness, reddening of the skin, or itchiness. Do not use in pets that are allergic to it. If a negative reaction occurs, please call your veterinary office.

  • Lumbosacral disease, or cauda equina syndrome, is caused by the narrowing of the spinal canal and results in compression of the spinal nerve roots; pressure on the nerves that exit the spine cause the clinical signs. This pressure may be due to a narrowed spinal canal caused by arthritis, intervertebral disc herniation, an infection in the disc, trauma, congenital malformation, or a spinal tumor. Dogs with lumbosacral disease are in pain. If the clinical signs and radiographs suggest lumbosacral disease, advanced imaging such as MRI or CT is recommended to make a diagnosis. Treatment involves either conservative medical treatment or surgical intervention.

  • Lung flukes are parasitic worms (trematodes) that infect dogs’ lungs after they have eaten an infected crayfish or rodents that have eaten infected crayfish. Infected dogs can be symptom-free or may develop cough with sometimes bloody mucus, pneumonia, pneumothorax, lethargy and weakness.

  • Lung tumors are considered rare in cats and dogs. Many pets may not show symptoms at first, and a tumor may be found coincidentally. Depending on the type and stage of cancer, treatment may be possible; otherwise, symptomatic supportive care may be an alternative option.

  • Lungworm infection is caused by one of several parasitic roundworms. Cats can get a lungworm infection by swallowing infective stages of parasitic lungworm. The exact way that a cat is infected varies according to the life cycle of the parasite. This handout outlines the signs, diagnosis, and treatment for lungworm in dogs.

  • Hip Dislocation and Postoperative Care in Cats

    La cadera es una articulación sencilla compuesta por una bola y un cuenco, que puede realizar una gran cantidad de movimientos en todas las direcciones y su función es permitir un adecuado movimiento de las extremidades posteriores.

  • A luxating patella is a kneecap that moves out of its normal location. A luxating patella can be corrected surgically, especially if the patella luxates frequently. If your veterinarian performs surgery before arthritis or another knee injury occurs, the prognosis is excellent.

  • The bacterium that causes Lyme disease can be transmitted to dogs through the bite of an infected tick, most commonly the deer tick (black-legged tick), which is found in the midwestern and eastern United States and throughout Canada.