 Uncommon (may occur in less than 1 in 100, but more than 1 in 1,000 patients): serious infections (including pneumonia, deep skin infections, joint infections, blood infection, and infections at various sites); localized swelling of the skin (angioedema); low blood platelet count; hives (elevated patches of red or pale skin that often itch); psoriasis; rash; inflammation or scarring of the lungs.