Reasonable Doubt

Quitting Zyrtec Is ‘Total Hell’

Users of the popular allergy drug can experience withdrawal symptoms. I was one of them.

Illustration: Ben Giles

Katie DeRosa, a 26-year-old graphic designer in Lawrence, Massachusetts, went to see her allergy doctor in 2014 about a nagging post-nasal drip. The doctor suggested she try the popular over-the-counter…