While Zyrtec side effects are typically mild, some rare serious side effects are possible, including irregular heartbeat and ...

If side effects occur, they are usually mild ... but because of the abuse and misuse potential of pseudoephedrine, Zyrtec-D purchases are regulated. Be prepared to provide additional information ...

You may report side effects to FDA at 1-800-FDA-1088. Use Zyrtec Liquid Gels (Oral) exactly as directed on the label, or as prescribed by your doctor. Do not use in larger or smaller amounts or ...