Alvorlige infektioner (incl. lungebetændelse, dybe hudinfektioner, ledinfektioner, blodinfektion og infektioner forskellige steder), lokal opsvulmen af huden (angioødem), lavt antal blodplader, nældefeber (hævede pletter af rød eller bleg hud, som ofte klør), psoriasis, udslæt, inflammation eller ardannelse i lungerne.
 Rare (may occur in less than 1 in 1,000 patients): serious allergic reactions (including severe localized swelling of the skin and wheezing); combined low platelet, red, and white blood cell count; nervous system disorders (with signs and symptoms similar to those of multiple sclerosis or inflammation of the nerves of the eyes or spinal cord); tuberculosis; worsening congestive heart failure; seizures; lupus or lupus-like syndrome (symptoms may include persistent rash, fever, joint pain, and tiredness); inflammation of the blood vessels; low red blood cell count, low white blood