I took cetirizine, intermittently, as needed, through the allergy season and stopped after first frost. I have many allergies, so I also take it when, I feel it might be of some help. For the last month, I've had insomnia, which has never been a problem before. I've quit coffee and a few other things, which I felt might have been the problem. I tried Zzzquil, with no results. Finally, started taking Xantex, which allowed me to sleep, but I don't like taking it regularly, for a problem, that shouldn't exist.
Last night my eyes were watering, so I took a cetirizine tab about an hour before bed ... slept like a baby for 10 hours!
Has my body become addicted to cetirizine, for sleep?