Category D—Limited reports describing the use of flurazepam in human pregnancy have been located. The effects of this drug on the fetus should be similar to other benzodiazepines, including the risk of malformations after exposure in the 1st trimester. Maternal use near delivery may cause a syndrome of hypothermia, hypotonia, respiratory depression, withdrawal, and difficulty feeding. The manufacturer classifies flurazepam as contraindicated in pregnancy.
Low incidence of infant toxicity and AEs associated with benzodiazepine use during breastfeeding. Benzodiazepines with shorter half-lives (i.e., lorazepam, alprazolam, and oxazepam) have been found to be very low in breast milk
In most elderly patients, the slow accumulate of the desalkyl metabolites causes a morning-after cognitive impairment
Renal insufficiency has a quantitatively small influence on pharmacokinetics; no dosage adjustments provided in the manufacturer's labeling
T½ ↑ ≈ 73% in patients with alcohol liver disease