http://www.medications.com/effect/view/29451 Is any one having menstrual problems? I have had a lot of cramping and little to no flow-which is unusual for me-I feel like I am constantly PMS-ing and I want to eat all the time! The allergy problem is gone but my ovaries are killing me and Im gaining w Wed, 30 Apr 2008 20:37:46 -0400 http://www.medications.com/effect/view/29451?item=7802 There are a lot of complaints posted! and they helped me.The real message is it may or may not work for everyone, and if it works it may stop working for you. I loved zyrtec for 5 years, going through a list of allergy meds the past 10 years. I'm only seas http://www.medications.com/effect/view/29451?item=7802 Fri, 16 Jan 2009 10:21:23 -0500 http://www.medications.com/effect/view/29451?item=16062 I believe it is. I've had the exact same problems since I started taking zyrtec. Significant weight gain, no menstrul cycle, extremely moody. Thing is I just stopped taking it and the itching from withdrawal is CRAZY!!! http://www.medications.com/effect/view/29451?item=16062