You’re not alone but it’s definitely not a common side effect from what I’ve been told. Allergy medication gives me terrible anxiety that sometimes escalates into panic attacks. For me I can take it during the day and feel jittery/weird but manageable, then it feels like it wears off but later while I’m sleeping it escalates and I wake up in the middle of a full blown panic attack. Not fun at all.

I have talked to my doctor about it and their opinion was that it’s not a documented side effect but everybody is different and so I should just avoid taking them. That answer sucks for me because I’m allergic to basically everything outside.

I’m sorry to hear you aren’t feeling great, I have been taking it for years and never had an issue.

Preface: I am NOT a doctor or associated with healthcare fields.

Info here: https://www.drugs.com/monograph/loratadine.html

Possible side effect, drowsiness. But: all meds can have side effects that differ from person to person, sometimes in surprising ways.

Example: I was prescribed catapres to lower my blood pressure. It did so magnificently. But it’s also used to calm down hyperactive kids. It did just the opposite for me—sent me into a manic spiral for several days after 2 doses. I was wired for sound.

So you may just have an odd reaction. Or, you may be on other meds that iteract with it. Here’s the list of known interactions: https://www.drugs.com/drug-interactions/loratadine-index.html

Thanks for all your replies everyone! I’m going to stay away from loratadine and go back to my old one.