Expect Questions About Cetirizine or Phenazopyridine Safety
July 2025
Recent news will bring up questions about some commonly used OTCs.
Cetirizine and levocetirizine. FDA is warning that sudden discontinuation of these second-generation antihistamines after prolonged use (few months to years) may cause rare but severe pruritus (itching).
The mechanism of this “antihistamine withdrawal” is unclear.
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