Claritin D (Loratadine and Pseudoephedrine) may treat allergies, side effects, dosage, drug interactions, warnings, patient labeling, overdosage, precautions, and others. Learn about Claritin-D (loratadine / pseudoephedrine) usage and dosing. Read the latest news and reviews about the drug as well as potential side effects and popular alternatives. Claritin contains loratadine, an antihistamine, while Claritin-D contains loratadine plus pseudoephedrine, a decongestant. Claritin can treat allergy symptoms like sneezing, itching, and runny nose, while Claritin-D treats these plus nasal congestion. Claritin is generally safe to take. Claritin-D 24 provides powerful 24 hour non drowsy symptom allergy relief and works hard on nasal congestion due to allergies or a cold. The steroid free allergy medicine is available in 12 hour and 24 hour doses, for adults and children 12 years and over. Experience non-drowsy, fast relief from nasal & sinus congestion caused by allergies or cold with Claritin-D® in 30 minutes. Shop Claritin-D 24 Hour Antihistamine Tablets and read reviews at Walgreens. Pickup & Same Day Delivery available on most store items. Claritin-D is used to treat sneezing, runny nose, itchy eyes, hives, itching, and other symptoms of allergies and the common cold. Learn about side effects, interactions and indications. Claritin-D® combines prescription strength allergy medicine that contains the best decongestant available to help relieve nasal congestion from allergies or cold. Shop claritin d at Walgreens. Find claritin d coupons and weekly deals. Pickup & Same Day Delivery available on most store items. Claritin is an antihistamine that reduces the effects of natural chemical histamine in the body. Histamine can produce symptoms of sneezing, itching, watery eyes, and runny nose. Claritin is used to treat sneezing, runny nose, watery eyes, hives, skin rash, hay fever, itching, and other cold or allergy symptoms.