Junjou Romantica's English volumes 10 and 12 ranked on the New York Time's Best Seller for July 11, 2009 and September 10, 2010 respectively. The series has expanded into several drama CDs, a light novel adaptation, multiple spin-off series, and a three-season anime adaptation. On June 22, 2015, it was announced in Shungiku Nakamura's official twitter that the manga has sold more than 3 million copies worldwide.
The series was previously serialized in CIEL TrèsTrès, but moved to Emerald on August 30, 2014 when the magazine went defunct.
Junjou Romantica was published in English by Tokyopop under its Blu Manga imprint from October 10, 2006 to August 31, 2010. Because of Tokyopop's closure, only 12 volumes were released. It has also been published in Spanish by Ivrea España since February 13, 2015.