Kitotifen fumarate, also simply known as ketotifen, is a medication used to prevent allergic conditions. Here's a breakdown of its key functions:
Applications:
- Allergic Conjunctivitis: This refers to itchy, watery eyes caused by allergies. Ketotifen eye drops help alleviate these symptoms.
- Allergic Rhinitis (Hay Fever): It can help prevent symptoms like sneezing, runny nose, and congestion associated with seasonal allergies. However, it's not commonly used for this purpose due to the availability of other more effective medications.
- Asthma Prevention: Ketotifen, typically in tablet or syrup form, can help prevent asthma attacks by reducing inflammation in the airways.
Mechanism of Action:
Ketotifen works in two main ways:
- Antihistamine: It blocks the action of histamine, a substance released by the body during an allergic reaction. Histamine causes allergy symptoms like itching, runny nose, and watery eyes.
- Mast Cell Stabilizer: It prevents mast cells from releasing histamine and other inflammatory chemicals. Mast cells are immune system cells that play a role in allergic reactions.
Important Considerations:
- Preventive, Not Relieving: Ketotifen is a preventative medication. It won't relieve sudden allergy symptoms like wheezing or shortness of breath.
- Gradual Improvement: It can take several weeks for ketotifen to start working effectively. Be patient and continue taking it as directed by your doctor.
- Available by Prescription: Ketotifen is typically available by prescription, although some countries might have over-the-counter eye drop options.