Zyrtec and pediatrician

My 2.5 year old son was on this for a little over a week. We noticed him start to have rapid eye blinking and head twitching every other minute or so. Took him to ER, doctors said possible pink eye even though there was no redness or discharge in his eyes. Followed up with his pediatrician and was told no pink eye but possible reaction to Zyrtec and to discontinue the med. Also advised that it takes up to 6 weeks for medicines to be completely out of the system. Pediatrician is also scheduling appointment with neurologist in case this "tic" doesn't go away in a reasonable amount of time. I wish I'd known about this site and others prior to giving my son this medicine recommended by a doctor. There should be a warning label on every bottle of medicine both prescribed and otc to direct people to websites such as these or a 1-800 number to advise about any and all potential side effects.

My daughter who just turn 7 has been on and off Zyrtec for the past 6 months. This last time it finally clicked... She was on it for about 3-4 weeks and I notice her mood changed and she was now very angry at anything and started hitting her sibblings and throwing things at me out of anger. She also was waking up at night either with bad dreams, or couldn't sleep. My husband and I realized that this all started about the time we put her back on Zyrtec. Two days ago, I took her off it and the next day she was an "Angel" compared to before. WOW what a difference. I did notice today (day two) she was sneezing more and didn't feel as well physically. So we are not out woods yet.

She also has been taking Singular for several years and I have been reading more about that medicine as well. I am not sure if needs to be taken off that yet, and will do an experiment. The timing isn't the best since school starts in just two weeks, but it might be worth it to have a happy child again.

On a side note, last year in school, they diagnosed her as having social anxiety. She is "extremely" shy and closed off in school. It would take her hours to do her homework which should have taken about 30 min. I am curious if stopping singular would help clear her head and make her less anxious. (She was on Zyrtec as well during that time).

This would be such an answer to prayer if it works. My two sons are so much happier than my daughter and I always wondered why. This may be the answer!

My 5 year old son has been taking one teaspoon of Zyrtec a day for approximately 6 weeks. After not getting much relief, the pediatrician increased his dose to 1 1/2 teaspoons. Ten days later, my son started experiencing horrible tics, clearing of the throat and constant sniffing. This head jerking and shoulder raising was never an issue until the Zyrtec was increased. We have since discontinued the Zyrtec. We are waiting two weeks as suggested by our pediatrician and hope that the tics will stop

my 3 1/2 year old son has had problems with focusing, hyperactivity at times, decreased concentration and inability to complete tasks. He has trouble falling asleep at night. Had him evaluated for this. Pediatrician suggested that it could be the zyrtec, since symptoms started about a year ago. MD stated that 2 other mother's started their child on Singular and then stopped the Zyrtec and saw an improvement in child's concentration. Will see