Can antihistamine make you sleep?

First-generation antihistamines readily cross the blood-brain barrier, causing significant sedation. If you need to remain alert, ask your doctor for a non-drowsy, second-generation antihistamine like fexofenadine instead.

My sleep tracker showed a 40% increase in deep sleep duration the night I took an antihistamine for my allergy. Just be careful, because it can leave a 'hangover' feeling the next morning, lowering your recovery score.

Since these medicines make you so sleepy and slow down digestion, I prefer having a very light, warm vegetarian dinner like dal khichdi before taking them. It keeps the stomach light while you rest.

Yes, they definitely cause sleepiness. Try taking them at night right before bed to avoid feeling drowsy during the day.

Every time I take a cold pill, I pass out so hard I miss my midnight snack cravings. It definitely acts like a sleeping pill, so don't take it if you have plans to go out eating!

With my PCOS fatigue, antihistamine sleepiness can make me feel sluggish for days. I am always careful and try to discuss non-sedating options with my physician so my active routine isn't disturbed.

I just completed a week of allergy treatment. The doctor specifically told me to take the antihistamine after dinner because of the drowsiness, and it really helped me sleep through my cough.

Actually, it knocks you out completely, yaar. I took one during office hours once and was literally struggling to keep my eyes open in front of my laptop. Never doing that again!

Oh god, Cetrizine sleep is a different level of sleep! Don't stress if you end up sleeping for 10 hours straight, your body probably needed that rest to fight off the allergy anyway.