Okeechobee County School District Perseverance, Respect, Integrity, Dependability, Ethics
A: Zyrtec-D is a combination tablet of an antihistamine (Zyrtec) and a decongestant (pseudoephedrine). Antihistamines help with sneezing, runny noses and drainage. Decongestants help relieve pressure and pain in the sinuses. Zyrtec or the antihistamine portion has a potential to cause some drowsiness and dry mouth. Sudafed (pseudoephedrine) can cause difficulty sleeping, nausea, and loss of appetite.
Zyrtec Uses. Zyrtec is most commonly used to treat allergies and their symptoms because of its ability to reduce the effects of histamineâa natural chemical released in the body during an allergic response. Histamine can cause watery, itchy eyes, runny nose, sneezing and a general unwell feeling.yrtec is considered safe to use in both children and adults, and the dosage varies depending on age and weight. For small children, Zyrtec is available in both a liquid suspension and chewable tablets. The dosage of these ranges based upon the childâs weight for children less than six years of age.