psoriatic arthritis
"I took Embrel for several years before switching to Humira.  I liked the thought of synthetic mouse protein over live mouse protein...plus I was having terrible injection site reactions to Enbrel.  Humira almost killed me.  I developed a severe jaw bone infection.  Was hospitalized for days with IV antibiotics...almost died.  I developed severe Central Nervous Symptoms...was diagnosed with Multiple Sclerosis...was Multiple Sclerosis, but the Humira reaction mimicked that.  I lost almost a 100 pounds in 6 weeks (the only perk) and had the MS symptoms for 6 months.  Six years later, I still have the CNS symptoms, if I get a fever.  This drug left lesions in my brain and my spine and that's why I get recurring CNS symptoms."