Ketotifen is an antihistamine and mast cell stabilizer used to treat allergic rhinitis and asthma. It works by blocking the release of histamine, a chemical responsible for many allergic symptoms. It also works by stabilizing mast cells, which are responsible for releasing histamine and other chemicals involved in the immune response. Ketotifen is available as a tablet, syrup, and eye drops. It is generally considered safe and effective for the treatment of allergic reactions and asthma, but it should be taken with caution as it can cause side effects such as drowsiness, dizziness, and nausea.
Ketotifen is a medication used to prevent allergic conditions such as asthma, allergic conjunctivitis (itchy, watery eyes), and urticaria (hives). It comes in two forms:
- Oral tablets or syrup: This is used to prevent asthma attacks.
- Eye drops: This is used to relieve itching and irritation caused by allergic conjunctivitis.
Ketotifen works in two ways:
- As an antihistamine: It blocks the action of histamine, a substance released by the body during an allergic reaction. Histamine causes allergy symptoms such as sneezing, itching, runny nose, and watery eyes.
- As a 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.
Ketotifen is not a bronchodilator, so it will not relieve sudden asthma symptoms like wheezing or shortness of breath. It is used to prevent asthma attacks by reducing inflammation in the airways.
It can take several weeks for ketotifen to start working effectively. You should continue taking it as directed by your doctor, even if you do not feel any immediate benefit.