Aradigm sold off its needle-free injection platform, known as Intraject, and its lead product, Intraject Sumitriptan, which targets quick relief of migraine. Intraject was sold to Zogenix for $4 million, and Aradigm will receive a small (between 3% and 5%) royalty from revenues.
This royalty payments is base on sales of products in U.S. Other countries, including the European Union, and around the world might be well over hundred million per year. No cost associated to this revenue stream. Will be lower when taking into consideration JMHO.