Remimazolam

Remimazolam
Clinical data
Trade namesByfavo
Other namesCNS-7056
AHFS/Drugs.comMonograph
License data
Routes of
administration
Intravenous
ATC code
Legal status
Legal status
Pharmacokinetic data
Elimination half-life45 - 70 minutes
Identifiers
  • methyl 3-[(4S)-8-bromo-1-methyl-6-(pyridin-2-yl)-4H-imidazo[1,2-a][1,4]benzodiazepin-4-yl]propanoate
CAS Number
PubChem CID
DrugBank
ChemSpider
UNII
KEGG
ChEMBL
CompTox Dashboard (EPA)
Chemical and physical data
FormulaC21H19BrN4O2
Molar mass439.313 g·mol−1
3D model (JSmol)
  • COC(=O)CC[C@@H]1N=C(c2ccccn2)c2cc(Br)ccc2-n2c(C)cnc21
  • InChI=1S/C21H19BrN4O2/c1-13-12-24-21-17(7-9-19(27)28-2)25-20(16-5-3-4-10-23-16)15-11-14(22)6-8-18(15)26(13)21/h3-6,8,10-12,17H,7,9H2,1-2H3/t17-/m0/s1 N
  • Key:CYHWMBVXXDIZNZ-KRWDZBQOSA-N N
 NY (what is this?)  (verify)

Remimazolam, sold under the brand name Byfavo, is a medication for the induction and maintenance of procedural sedation in adults for invasive diagnostic or surgical procedures lasting 30 minutes or less. It is a benzodiazepine drug, developed by PAION AG in collaboration with several regional licensees as an alternative to the short-acting imidazobenzodiazepine midazolam, for use in the induction of anesthesia and conscious sedation for minor invasive procedures.

Remimazolam was found to have both a more rapid onset and a shorter duration than midazolam, and human clinical trials showed a faster recovery time and predictable, consistent pharmacokinetics, suggesting some advantages over existing drugs for these applications.

The most common side effects for procedural sedation include low blood pressure, high blood pressure, diastolic hypertension, systolic hypertension, low blood oxygen level, and diastolic hypotension.

Remimazolam was approved for medical use in the United States in July 2020, and in the European Union in March 2021.