Q – Tips: pseudoephedrine and phenylephrine
- Since pseudoephedrine (found in drugs such as Sudafed Congestion, Claritin-D and Zyrtek-D) has become a “sign-for-it-at-the-pharmacy drug,” phenylephrine (brand name Sudafed 12/24 Hour® and others) has replaced it as the most common OTC decongestant.