Zyrtec and allergy medicine

I began taking Zyrtec 2 months ago. It controlled my allergy symptoms very well, but I noticed increasing fatigue and depression. I became a "couch potato" barely able to get through my day. I began having suicidal thoughts and gained weight...probably due to the lack of activity. In the last 2 days, I have gone back to my old allergy medicine (Allegra) and am feeling like myself again.

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!

I started using Zyrtec recently after my niece received it from her doctor as the solution to her allergies. (We bought it at the drug store). My allergies are skin related where i walk and feel a deep itch in my thighs and anywhere else i have tight clothing. Also when i work out - i have itch deep skin. This is under the surface and very uncomfortable especially when you are walking/working out. Leads to confusion etc. I had never used any allergy medicine before but decided just to see if i would feel any different.

Anyhow, I started using Zyrtec the other day and almost immediately, I started fighting with my boyfriend - everything i was angry with him about came out. It was helpful but also i was very mean in my approach. I also started getting back pains around the spine area - not in the spine but around it and could not sleep until i took an ibuprofen. Today i experienced left shoulder and back pain. That was it for me and whats funny is that i took the lowest possible doze. So i am not touching that medicine again. I am a 36 year old woman. Its a strong medicine and something is strange with it (changes moods etc). I will have to change the medication for my niece before she goes through the side effects.

My son had behavioral side effects. It worked great for the runny nose, but he always got in trouble at school on the days I gave him his medicine. We had to skip the allergy medicine for good days at school. Me 2 year old has been taking it for allergies and I think he may be having the same problem. I thought he was just bad, but when we ran out of medicine this week he behaved much better.

I believe Zyrtec to be the source of my leg problems. For the last few years I've had problems with my legs at night before bedtime. The doctors I've seen regarding this condition assumed it was restlesslegs syndrome, but I stopped taking the zyrtec and noticed an immediate relief with my leg pain at night. I'm in the process of switching to another allergy medicine to see if this will alliviate the problem. Never noticed any depression problems though.