Tag: antihistamines
Anticholinergic Effects of Antihistamines: Dry Mouth, Constipation, Urinary Issues
Dec, 9 2025
First-generation antihistamines like Benadryl cause dry mouth, constipation, and urinary issues by blocking acetylcholine receptors. These side effects are common, avoidable, and linked to dementia risk in older adults. Switching to second-generation options like Zyrtec or Claritin eliminates these problems.
Xyzal (Levocetirizine) vs Other Antihistamines: Which Is Best?
Oct, 10 2025
Compare Xyzal (levocetirizine) with top antihistamine alternatives, see efficacy, sedation risk, cost, and best use cases to pick the right allergy relief.