(HealthDay News) -- Allergy medications often contain an antihistamine.
Some antihistamines can make users feel drowsy, unfocused and slow to react, says the U.S. Food and Drug Administration.
When taking allergy medication, the FDA suggests:
Don't Let Allergies Spoil Your Holidays
Egg Allergy? Don't Let That Stop You From Getting Vaccinated
Should You Try Allergen Immunotherapy?
