NasalCrom Nasal Spray is a non-drowsy option for allergy-related congestion ... other medicated nasal decongestants. Allegra is an antihistamine that millions have used to relieve the typical ...

You'll definitely want to check in with your doctor before taking drowsy antihistamines, as they can also be harmful for older adults. Overall, it's best to stick to non-drowsy antihistamines.

Non-drowsy antihistamines are recommended for their safety and effectiveness. These antihistamines take between one to two hours to take effect, and a 2005 study found both Cetirizine and ...