Methotrexate: Use in the Post Dobbs v. Jackson Era

Methotrexate is one of the most frequently used medications for the treatment of rheumatic diseases. Although initially developed for use as chemotherapy for both solid and hematologic malignancies, it was used as early as the 1960s with success for rheumatoid arthritis (RA) and psoriatic arthritis, ultimately being approved by the US Food and Drug Administration for the treatment of RA in 1988. Beyond RA and psoriatic arthritis, methotrexate is used in the treatment of systemic lupus erythematosus, idiopathic inflammatory myopathies, and other inflammatory conditions. Methotrexate is cytotoxic to the trophoblast and has been used to treat both ectopic pregnancy and gestational trophoblastic neoplasia, leading to studies in the early 1990s that showed it was effective and safe for early abortion in combination with prostaglandin E1 analog misoprostol. Methotrexate is also a teratogen, causing serious birth defects in 6%-10% of patients taking it while pregnant. Additionally, women are more likely to be affected by both RA at SLE, as compared with males, thus worsening the burden of these adverse effects. Both methotrexate's history of use as an abortifacient and its teratogenic properties make its use more complicated in the current era of abortion policy in the United States following the Dobbs v. Jackson Women's Health Organization ruling. Recently published data suggest that this ruling has affected both provider perspectives and patient experiences as it relates to methotrexate use. In the post-Dobbs era, the role of the rheumatologist as it relates to patients' sexual and reproductive health is likely to expand.