Which medications in the drug class Immunosuppressants are used in the treatment of Interstitial (Nonidiopathic) Pulmonary Fibrosis?

Updated: Sep 15, 2020
  • Author: Eleanor M Summerhill, MD, FACP, FCCP; Chief Editor: Zab Mosenifar, MD, FACP, FCCP  more...
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Answer

Immunosuppressants

These agents may inhibit key factors in involved in immune reactions.

Cyclophosphamide

Chemically related to nitrogen mustards. As an alkylating agent, mechanism of action of active metabolites may involve cross-linking of DNA, which may interfere with growth of normal and neoplastic cells of immune system. Possibly a steroid-sparing medication.

Azathioprine (Imuran, Azasan)

Inhibits mitosis and cellular metabolism by antagonizing purine metabolism and inhibiting synthesis of DNA, RNA, and proteins. These effects may decrease proliferation of immune cells and result in lower autoimmune activity. Possibly a steroid-sparing medication.

Cyclosporine (Gengraf, Neoral, Sandimmune)

Cyclosporine is a cyclic polypeptide that suppresses some humoral immunity and, to a greater extent, cell-mediated immune reactions.

Methotrexate (Otrexup, Rasuvo, Rheumatrex, Trexall)

Used for managing constitutional symptoms. It blocks purine synthesis and 5-aminoimidazole-4-carboxamide ribonucleotide (AICAR), thus increasing anti-inflammatory adenosine concentration at sites of inflammation. Methotrexate ameliorates symptoms of inflammation.


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