Common side effects of Zyrtec include sleepiness, tiredness, and dry mouth. Zyrtec can interact with other medications that cause drowsiness, such as opioids and sleeping pills. Rarely, Zyrtec can ...

Some antihistamines can cross the blood-brain barrier – a membrane that’s supposed to protect harmful substances from getting in - Getty If you’re blighted by hay fever or other allergies, you ...

As with other drugs, cetirizine can cause side effects, such as drowsiness and sore throat. If you are not able to tolerate side effects from cetirizine, talk with your doctor or pharmacist.

With spring on the horizon, millions of people across the UK will start taking antihistamines for hay fever 🤧 ...

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’re sniffling, sneezing and staring at the pharmacy shelf. Here’s how to choose the right option for your symptoms. By Nina Agrawal With tree pollen counts hitting high levels in some parts of the ...

Diphenhydramine is the active ingredient in countless over-the-counter medications. But experts say there are serious risks to taking too much of the drug—or taking it too long. Diphenhydramine, a ...

Experts are talking more about the side effects and potential risks of this familiar pink allergy pill. Learn why it’s controversial and the dos and don’ts of using it. A recent medical review argued ...