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  • Lanthanum is a phosphorus binding agent used to treat high blood phosphorus levels due to kidney disease in cats and dogs. It is used off label (extra label) in veterinary medicine. Lanthanum comes in tablet and powder forms to be given orally.

  • Laser surgery is a procedure in which a beam of light energy is generated at a specific wavelength, resulting in the cutting of tissues. Laser surgery has major advantages when compared to traditional surgery, including decreased pain, decreased inflammation, and improved tissue healing.

  • Latanoprost (brand names: Xalatan®, Monoprost®, Xelpros®) is used off label to reduce pressure in the eye and treat glaucoma in dogs and other animals. Latanoprost is applied to the eye as a liquid solution.

  • Leaky gut syndrome refers to an increase in the permeability of the intestines. This condition may be caused by any significant damage to the intestines. Acute cases of leaky gut may be caused by infection, trauma, toxins, or medication overdoses. Chronic cases, in contrast, may be caused by food allergies, long-term NSAID use, or other causes. Treatments will be targeted at the underlying disease causing your cat's leaky gut.

  • Leflunomide is an immunomodulating agent used to treat certain immune-mediated conditions in cats and dogs. It is used off label (extra label) in veterinary medicine. Leflunomide comes in a tablet form that may be specially compounded into a liquid. Wear gloves when handling and do not handle if pregnant or nursing.

  • Lenticular sclerosis is the term for a bluish, transparent haze that develops in the lens of the eye in middle-aged to senior cats. Vision does not appear to be significantly affected. While the exact mechanism is poorly understood, it appears that the lens gradually becomes denser or harder with age. There is no specific treatment for lenticular sclerosis, nor is treatment necessary.

  • Leuprolide is a synthetic hormone used to treat adrenal gland problems in ferrets, gonadal issues in birds, and experimentally treat reproductive issues and incontinence (involuntary loss of bladder and bowel control) in dogs and cats. It is given by injection.

  • Levetiracetam (brand names: Keppra®, Elepsia®, Spritam®) is used off label as an anticonvulsant used to treat seizures and epilepsy. In dogs, it is typically used in combination with other anticonvulsants, while in cats, it is used alone or in combination.

  • Levobunolol ophthalmic is a topical anti-glaucoma agent used to reduce intraocular pressure (IOP) in glaucoma and to prevent glaucoma from developing in the normal eye of animals with unilateral (one-sided) glaucoma. It is used off label in cats, dogs, and other animals.

  • Levofloxacin ophthalmic is a topical antibiotic used to treat bacterial eye infections in cats, dogs, and other animals. This medication is used off label in veterinary medicine. Levofloxacin ophthalmic comes in liquid drop suspension form.