Metabolised by CYP 3A4. No data pointing to CYP-induction. Reported to have been used by some patients without porphyrinogenic side effects. Plasma concentrations probably below mmol range.
Chemical description
Cyclopyrrolone hypnotic (5-7.5 mg/d). Metabolized by hepatic CYP3A4.
Personal communication
Andersson, patient inquiry: used without ill effects (n=4).
Thunell, patient inquiry: tolerated (n=1).
IPNet drug reports
Uneventful use reported in 37 patients with acute porphyria.
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