1) Could be serum sickness though this usually occurs closer to the time of the infusion.
2) Drug induced lupus. This is what happened to me 8 days after the doctor increased my Remicade from 5 mg/kg to 10 mg/kg. I got severe joint pain, swelling of some joints, and a fever. The joint pain was my biggest issue. My rheumy ran blood tests and confirmed it was drug induced lupus.
Moderator Crohn's Disease, IBS, and Osteoarthritis Forums
CD, Ankylosing Spondylitis, lupus, small fiber peripheral neuropathy, avascular necrosis, peripheral artery disease, pulmonary hypertension, degenerative disc disease, asthma, severe allergy and a host of other medical problems.