Claritin-D (
loratadine with pseudoephedrine) is used to treat 
seasonal allergies and relieve 
nasal congestion and sinus pressure. It is a combination of an 
antihistamine with the same active ingredient as 
Sudafed. It works by blocking the action of histamine to relieve 
allergic symptoms, and by constricting blood vessels in the nose to relieve congestion. It is available over-the-counter and as generic 
loratadine/
pseudoephedrine.
Get Loratadine/Pseudoephedrine for as low as $4.61, which is 90% off the average retail price of $44.17 for the most common version, by using a GoodRx coupon.