What If I Take an Overdose of Levocetirizine?
People who take too much levocetirizine may have overdose symptoms that include:
- Drowsiness
- Agitation
- Restlessness.
What Should I Do If I Miss a Dose of Levocetirizine?
If you forget to take your levocetirizine dose, take your missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not take a double dose.
How Does Levocetirizine Work?
Allergies occur when the body's immune system reacts to normally harmless substances that do not bother most people. This reaction is partly caused by the release of histamine from certain cells in the body. Levocetirizine is an antihistamine, which means it blocks histamine from binding to histamine receptors and causing
allergy symptoms. Because histamine is responsible for many of the symptoms of allergies, blocking it can be helpful.
Histamine is also responsible for the formation of hives. By blocking histamine, levocetirizine can alleviate the itching due to hives.
Effects of Levocetirizine
Levocetirizine has been evaluated in several different studies for treating allergies. In these studies, the medication helped reduce allergy symptoms, including sneezing, a runny nose, nasal itching, and eye itching. These studies also showed that levocetirizine begins to work quickly, usually by the second day of taking it.
The medication has also been studied for treating chronic hives and rashes that are due to unknown causes. In these studies, people who took levocetirizine had fewer and smaller hives and experienced less itching, compared to people who took a placebo (a "sugar pill" with no active ingredient).