Generic Drug Name: Timolol Maleate
Other Common Names: Timoptic, Cosopt
Timolol maleate is a non-selective beta-adrenergic receptor-blocking agent that is most commonly used in ophthalmic form in order to treat glaucoma. It is mostly used to prevent glaucoma, as it is not strong enough to fully treat the condition on its own.
Timolol maleate should be used cautiously in cats with asthma because it may trigger an asthma attack. Animals with respiratory disease, congestive heart failure, or animals that are pregnant or lactating should be administered timolol maleate with caution. Complications may arise if administered to patients that are taking vitamins, supplements, or other medications.
Some negative side effects associated with timolol maleate include swelling, itching, redness, and other forms of eye irritation. It may also cause the patient's pupil to become smaller. Other negative side effects may include diarrhea, nausea, anorexia, insomnia, depression, hypotension, and edema.
Timolol maleate should not be used in animals with a known allergy or hypersensitivity to the drug. A veterinarian should be contacted immediately if any negative side effects occur or if an overdose is suspected. Some possible symptoms of an overdose can include headache, chest pain, slow heart beat, dizziness, and fainting.
Timolol maleate should be kept at room temperature in a tight, light resistant, childproof container. It should be stored where children and pets will not be able to reach it.
Timolol is only supplied in the form of an eye drop. A typical dose is one eye drop twice a day. In some cases, this can be upped to three times a day upon a veterinarian's recommendation. Should a dose be forgotten, it should be administered as soon as possible. If it is almost time for the subsequent dose, the missed dose should be skipped and the regular dosing schedule should continue. Two doses should not be administered at the same time, as an overdose may occur.
Doses may vary in different species, when the drug is given by a different route or concurrently with other medications, and with regards to a patient's age, breed, and health status. A veterinarian's dosing instructions and/or those printed on the medication label should be followed closely.