The Food and Drug Administration (FDA) is now warning clinicians and healthcare consumers about a rare but severe side effect associated with stopping long-term use of oral allergy medicines cetirizine or levocetirizine. FDA reports that some patients ultimately develop severe pruritus that requires medical attention if they stop taking the medications, and the agency aims to update the prescribing information to raise awareness about the post-discontinuation risk. According to the FDA, pruritus symptoms resolved for …
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