Reaction

Drug Level Fluctuating reporting signals

Last recalculated 2026-09-14T18:28:35.993900+00:00 · 868 reports · 17 co-occurring drugs

As of the last recalculation, Drug Level Fluctuating appears in 868 FAERS reports alongside 17 co-occurring drug terms. The strongest observed disproportionality signal is EXTENDED PHENYTOIN SODIUM (PRR 107.3).

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
Extended Phenytoin Sodium69107.3107.8
Brivaracetam1849.049.1
Phenytoin3946.947.0
Tacrolimus18435.535.5
Basiliximab1531.131.1
Tacrolimus Extended-Release Capsules11525.325.3
Tacrolimus Ointment 0.1%11224.624.6
Anti-Thymocyte Globulin (Rabbit)721.021.0
Buprenorphine7119.920.0
Divalproex Sodium3518.818.8
Valganciclovir Hydrochloride Powder,917.917.9
Mycophenolic Acid2317.717.7
Mycophenilic Acid1416.416.5
Buprenorphine Hydrochloride, Naloxone Hydrochloride1414.114.1
Ritonavir 100 Mg813.013.0
Mesna Injection411.711.7
Mesna411.411.4

Related reactions

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