Children's Zyrtec- Major Side Effects????
My 2 yo son was having bad allergies last week and his pediatrician suggested Zyrtec. He's been taking it for 4 days. We noticed yesterday that his behavior was totally out of character. Super clingy, screaming, not drinking or eating as much, waking every hour crying, restlessness, major mood swings. He is normally super calm, easy going and happy. I'm so upset because I just read that other people had similar experiences and they believe it's from the Zyrtec. Anyone else have a similar experience? How long do these effects last? TIA