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.
2 doctors agreed: Several medications: Several medications cause dry mouth including anti-depressants, anti-epileptics, muscle relaxants, anti-psychotics and anti-histaminics (benadryl, claritin). Additionally, smoking/tobacco and anti-cancer drugs can also cause dry mouth. ...Read more.