[blog updated April 2026] Why Allergy Decongestants Can Cause Anxiety, Insomnia, and High Blood Pressure The Hidden Dangers of Claritin-D, Allegra-D, and Zyrtec-D Spring allergy season is here, and with it comes sneezing, itchy eyes, sinus pressure, and miserable nasal congestion. Many people automatically reach for medications like Claritin-D, Allegra-D, or Zyrtec-D because they seem […]
