Can antihistamines make me vomit?
The antihistamines are relatively safe and been around for
more than 40 years. Most will not make you vomit but you may develop nausea. I
am not sure why you are taking an antihistamine. It is more likely that the
condition you have is making you vomit and not the antihistamine. In fact, some
antihistamines are antiemetics-meaning they settle down your stomach.