Triprolidine and pseudoephedrine are medications commonly used in combination to relieve symptoms associated with allergies and the common cold.

Triprolidine is an antihistamine that helps alleviate symptoms such as sneezing, itching, watery eyes, and runny nose by blocking the action of histamine, a substance produced by the body during allergic reactions.

Pseudoephedrine is a decongestant that works by narrowing blood vessels in the nasal passages, reducing swelling and congestion, and making it easier to breathe.

Together, triprolidine and pseudoephedrine provide relief from nasal congestion, sneezing, itching, and runny nose caused by allergies or the common cold. They are often found in combination in over-the-counter medications for allergy and cold relief.