glutathione and glutathione reductase The role of related enzymes on cellular redox homoeostasis network Significance of glutathione and glutathione

There was no evidence of mutagenic potential when dihydroergotamine mesylate was tested in the presence or absence of metabolic activation in two gene mutation assays (the Ames test and the in vitro mammalian Chinese hamster V79/HGPRT assay) and in an assay for DNA damage (the rat hepatocyte unscheduled DNA synthesis test)

10.1038/nrc2401 Nat

Because the nutrient is protected, the question of "with food or without" becomes less urgent

A patient on a loading schedule of frequent injections will show higher levels than one on monthly maintenance, and the timing of the last dose relative to the blood draw can change interpretation