Loracarbef is an antibiotic. Its use was discontinued in 2006.[citation needed] It is a carbacephem, but it is sometimes grouped together with the second-generation cephalosporin antibiotics. It was marketed under the trade name Lorabid. Loracarbef is a synthetic carba analogue of cefaclor, and is more stable chemically. Diarrhea is the most common adverse effect with Loracarbef.