Alefacept is a prescription medication used to treat moderate to severe chronic plaque psoriasis in adults. Alefacept belongs to a group of drugs called immunosuppressants. It is thought to work by blocking the actions of certain cells of the immune system.
Alefacept comes in an injectable form to be given directly into a muscle by a healthcare provider. It is usually given once a week, for 12 weeks.
Common side effects include sore throat, dizziness, and cough. Do not drive or operate heavy machinery until you know how Alefacept affects you.