If you or anyone you know is currently taking Raptiva (efalizumab) for psoriasis, it is currently being withdrawn from the market due to fatal viral infections and brain damage as a side effect. Raptiva suppresses the immune system. Around 70-90% of the population has a virus called the JC virus dormant in their bodies, and when Raptiva suppresses the immune system this virus can become active. When it does so, it causes progressive multifocal leukoencephalopathy (PML), which is similar to MS and causes inflammation of the brain.
If you're using Raptiva (or have in the past), please talk to your doctor ASAP about how to best wean yourself off of it and about your risk factors for PML.
( Below is the email the makers of Raptiva are sending out to patients. )