biologic

…led to the production of biologic drugs, agents made from proteins and other organic compounds produced by bacteria with recombinant DNA; one such compound is synthetic insulin. However, because genetic engineering uses existing genes and bacteria, it has technical limitations and is expensive.

Oral drugs called biologics (because they are made from human or animal proteins) modulate the immune system by attacking immune cells that are working improperly. Several biologics have been approved for psoriasis, including infliximab (Remicade), etanercept (Enbrel), and guselkumab (Tremfya).