Reaction

Drug Exposure Before Pregnancy reporting signals

Last recalculated 2026-09-14T18:28:35.993900+00:00 · 1,005 reports · 12 co-occurring drugs

As of the last recalculation, Drug Exposure Before Pregnancy appears in 1,005 FAERS reports alongside 12 co-occurring drug terms. The strongest observed disproportionality signal is ISOTRETINOIN (PRR 63.5).

Important: FAERS is a spontaneous, voluntary, unverified reporting system. PRR and ROR identify reporting patterns for investigation; they are not incidence rates and do not establish causation.
DrugCo-reportsPRRROR
Isotretinoin13263.563.6
Alemtuzumab3741.141.2
Etonogestrel And Ethinyl Estradiol3028.828.9
Cimetidine1226.126.1
Dimenhydrinate1325.625.6
Bleomycin Sulfate816.216.2
Letrozole4114.314.3
Progesterone1513.813.8
Lopinavir And Ritonavir812.312.3
Medroxyprogesterone Acetate187.67.6
Belimumab106.66.6
Guselkumab52.92.9

Related reactions

Data source: openFDA FAERS. See the OpenPV methodology and limitations.