New research, from King's College London and the University of Porto, has mapped the histamine system in the brain. Histamine, a molecule more commonly associated with allergies, plays a separate but ...

Add Yahoo as a preferred source to see more of our stories on Google. Antihistamines are medications that relieve allergy symptoms by blocking the effects of histamine. (Getty Images) (Kinga ...

Add Yahoo as a preferred source to see more of our stories on Google. Some antihistamines can cross the blood-brain barrier – a membrane that’s supposed to protect harmful substances from getting in - ...

Though many people think of allergies as only being triggered in the fall or springtime, the reality is that seasonal allergies often affect people year-round, including winter. Because some plants ...

You may not think twice about taking an antihistamine when allergy season hits or a bout of hay fever strikes. But if you are trying to conceive or closely monitoring your fertility, that common ...

Antihistamines are the first-line treatment for chronic spontaneous urticaria (CSU). If antihistamines are unsuccessful, systemic therapies that suppress the immune system are the next option. CSU is ...

For people who take an antihistamine such as Benadryl for a cold or allergies, drowsiness is often a welcome side effect. But a Baylor College of Medicine sleep expert cautions against turning to this ...

GoodRx reports that seniors should use corticosteroid nasal sprays and avoid drowsy antihistamines like Benadryl to minimize side effects.