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.
1 Adults and children 6 years of age or older-Take one 10mg tablet daily. 2  This can be divided into two 5mg (1/2 a tablet) doses. 3  The effects of Zrytec will not last as long in children as they do in adults so it is recommended that you split the dosage into two for children. Consult with your doctor or pharmacist before taking Zyrtec if you are taking certain sedatives, tranquillisers, muscle relaxants or antidepressants. 2  Do not take more than 20mg of Zyrtec a day unless directed to do so by your doctor or pharmacist. 3  Zyrtec is unlikely to cause drowsiness.