Claritin-D, Allegra-D, and Zyrtec-D all contain a decongestant called pseudoephedrine, the same active ingredient that powers Sudafed. It makes your nose feel less stopped up by narrowing the ...
These medications are usually marked with a "D" — such as Claritin-D, Allegra-D, and Zyrtec-D. For a long list of what's available, have a look here. Corticosteroid nasal sprays can also help ...
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