No, there is not a generic version of Enbrel available. However, this drug is considered a biologic (a drug created by a biological process rather than a chemical process).In the United States, biologics are governed by different rules than other drugs.Currently in the U.S., generic forms of biologic drugs are not allowed, but products called biosimilars are.Biosimilars are drugs that are biologically similar to an existing FDA-approved biologic drug, created using what are considered virtually identical processes.urrently in the U.S., generic forms of biologic drugs are not allowed, but products called biosimilars are. Biosimilars are drugs that are biologically similar to an existing FDA-approved biologic drug, created using what are considered virtually identical processes.