ROMIFIDINE HYDROCHLORIDE

Details

Stereochemistry	ACHIRAL
Molecular Formula	C9H9BrFN3.ClH
Molecular Weight	294.551
Optical Activity	NONE
Defined Stereocenters	0 / 0
E/Z Centers	0
Charge	0

SHOW SMILES / InChI

Structure Search

SMILES

Cl.FC1=C(NC2=NCCN2)C(Br)=CC=C1

InChI

InChIKey=SDXVSIWCVTYYQN-UHFFFAOYSA-N

InChI=1S/C9H9BrFN3.ClH/c10-6-2-1-3-7(11)8(6)14-9-12-4-5-13-9;/h1-3H,4-5H2,(H2,12,13,14);1H

HIDE SMILES / InChI

Molecular Formula	ClH
Molecular Weight	36.461
Charge	0
Count

Stereochemistry	ACHIRAL
Additional Stereochemistry	No
Defined Stereocenters	0 / 0
E/Z Centers	0
Optical Activity	NONE

Molecular Formula	C9H9BrFN3
Molecular Weight	258.09
Charge	0
Count

Stereochemistry	ACHIRAL
Additional Stereochemistry	No
Defined Stereocenters	0 / 0
E/Z Centers	0
Optical Activity	NONE

Description
Sources: https://www.fda.gov/ohrms/dockets/98fr/141-229-fois001.pdf

Romifidine is an alpha2-adrenergic agonist, which as a sedative and analgesic in horses. The drug was approved by FDA under the name Sedivet. It has no use in humans.

CNS Activity

Approval Year

Targets

Primary Target	Pharmacology	Condition	Potency
Alpha-2B adrenergic receptor 13 Target ID: O77721 Gene ID: NA Gene Symbol: ADRA2B Target Organism: Equus caballus (Horse) Sources: https://www.fda.gov/ohrms/dockets/98fr/141-229-fois001.pdf	Agonist 2752

Conditions

Condition	Modality	Targets	Highest Phase	Product
Sedation 4 Sources: http://files.boehringer.com.au/files/CMI/Sedivet%20ANZ.pdf	Primary		Approved 8583	SEDIVET Approved Use For use as a sedative and analgesic to facilitate handling, clinical examinations, clinical procedures, and minor surgical procedures in adult horses; and for use as a preanesthetic prior to the induction of general anesthesia in adult horses. Launch Date 2004

PubMed

Title	Date	PubMed
Alpha-2 agonists as pain therapy in horses.	2010-12	21056297
Romifidine as a constant rate infusion in isoflurane anaesthetized horses: a clinical study.	2010-09	20712609
Human exposures to immobilising agents: results of an online survey.	2010-08-28	20802186
Effects of adding butorphanol to a balanced anaesthesia protocol during arthroscopic surgery in horses.	2010-03-13	20228366
Cardiovascular effects following epidural injection of romifidine in isoflurane-anaesthetized dogs.	2010-03	20230558
Partial intravenous anaesthesia in 5 horses using ketamine, lidocaine, medetomidine and halothane.	2009-12	20458864
Alfaxalone in cyclodextrin for induction and maintenance of anaesthesia in ponies undergoing field castration.	2009-09	19709052
Comparison of the effects of the alpha-2 agonists detomidine, romifidine and xylazine on nociceptive withdrawal reflex and temporal summation in horses.	2009-07	19538573
Sedative and analgesic effects of romifidine in camels (Camelus dromedarius).	2009-07	19538572
Anaesthetic and cardiorespiratory effects of romifidine/ketamine combinations in cats.	2009-07	19470145
Effect of sedation with detomidine and butorphanol on pulmonary gas exchange in the horse.	2009-05-07	19422714
Comparison between lithium dilution and pulse contour analysis techniques for cardiac output measurement in isoflurane anaesthetized ponies: influence of different inotropic drugs.	2009-05	19397771
Alterations in the glutathione metabolism could be implicated in the ischemia-induced small intestinal cell damage in horses.	2009-03-18	19296836
Castration of horses under total intravenous anaesthesia: analgesic effects of lidocaine.	2009-03	19239656
Influence of calcium chloride on the cardio-respiratory effects of a bolus of enoximone in isoflurane anaesthetized ponies.	2009-03	19239648
Anaesthesia of pigs with a combination of romifidine, butorphanol and ketamine.	2008-12-13	19074790
A comparison of recovery times and characteristics with sevoflurane and isoflurane anaesthesia in horses undergoing magnetic resonance imaging.	2008-09	18466165
The influence of body mass and thoracic dimensions on arterial oxygenation in anaesthetized horses and ponies.	2008-09	18466164
Effects of dobutamine on cardiovascular function and respiratory gas exchange after enoximone in isoflurane-anaesthetized ponies.	2008-07	19522889
Clinical evaluation of ketamine and lidocaine intravenous infusions to reduce isoflurane requirements in horses under general anaesthesia.	2008-07	19522888
Epithelial expression of mRNA and protein for IL-6, IL-10 and TNF-alpha in endobronchial biopsies in horses with recurrent airway obstruction.	2008-02-23	18294392
Sparing effect of a low dose of intrathecal morphine on fentanyl requirements during spinal surgery: a preliminary clinical investigation in dogs.	2008-02	18251809
Sedative and cardiorespiratory effects of three doses of romifidine in comparison with medetomidine in five cats.	2008-01-19	18204032
Comparison of ketamine and S(+)-ketamine, with romifidine and diazepam, for total intravenous anesthesia in horses.	2008-01	17565569
Metabolism before, during and after anaesthesia in colic and healthy horses.	2007-11-15	18001483
Evaluation of the anaesthetic effects of combinations of ketamine, medetomidine, romifidine and butorphanol in European badgers (Meles meles).	2007-11	17565574
The use of alpha-2 agonists in the equine practice: comparison between three molecules.	2007-08	17682902
Bilateral Polydactyly in a foal.	2007-06	17519577
Pharmacokinetics of intramuscular ketamine in young ostriches premedicated with romifidine.	2007-02	17359455
The effects of detomidine, romifidine or acepromazine on echocardiographic measurements and cardiac function in normal horses.	2007-01	17238956
Comparison of romifidine and medetomidine pre-medication in propofol-isoflurane anaesthetised dogs.	2006-11	17054484
Cardiorespiratory effects of desflurane in dogs given romifidine or medetomidine before induction of anesthesia with propofol.	2006-10	17042386
Heart rate responses during acclimation of horses to water treadmill exercise.	2006-08	17402403
Risk factors for colic in horses after general anaesthesia for MRI or nonabdominal surgery: absence of evidence of effect from perianaesthetic morphine.	2006-07	16866208
[Alpha-2-agonists: everyday anesthetic treatment in veterinary medicine, but far from safe. The consequences of accidental self injection].	2006-03-15	16613236
Effect of intratesticular injection of lidocaine on cardiovascular responses to castration in isoflurane-anesthetized stallions.	2006-03	16506900
A2-agonists in sheep: a review.	2006-03	16475998
Dissociative anaesthesia during field and hospital conditions for castration of colts.	2006	16722301
Effect of romifidine on the nociceptive withdrawal reflex and temporal summation in conscious horses.	2005-11	16334961
High inspired oxygen concentrations increase intrapulmonary shunt in anaesthetized horses.	2005-11	16297043
Romifidine or medetomidine premedication before propofol-sevoflurane anaesthesia in dogs.	2005-10	16207314
Characterization of the stereoselective biotransformation of ketamine to norketamine via determination of their enantiomers in equine plasma by capillary electrophoresis.	2005-10	16167314
Standing oral extraction of cheek teeth in 100 horses (1998--2003).	2005-03	15779621
Effects of acepromazine on pulmonary gas exchange and circulation during sedation and dissociative anaesthesia in horses.	2005-03	15762913
Comparison of morphine and butorphanol as pre-anaesthetic agents in combination with romifidine for field castration in ponies.	2005-01	15663735
Romifidine-ketamine anaesthesia in atropine and triflupromazine pre-medicated buffalo calves.	2004-12	15610485
A romifidine and morphine combination for epidural analgesia of the flank in cattle.	2004-11	15600157
Cardiopulmonary effects of romifidine/ketamine or xylazine/ketamine when used for short duration anesthesia in the horse.	2004-10	15581222
Effects of tiletamine/zolazepam-romifidine-atropine in ocelots (Leopardus pardalis).	2004-07	15268694
Sedative, analgesic and cardiorespiratory effects of romifidine in cats.	2004-07	15268691

Patents

Sample Use Guides

In Vivo Use Guide

Sedative doses ranged between 30 and 100 mcg/kg; preanesthetic doses ranged between 40 and 100 mcg/kg.

Route of Administration: Intravenous

In Vitro Use Guide

Rat spinal cord preparations were treated with romifidine at concentrations from 1 to 1000 nM. The drug depressed both the high intensity and low intensity excitatory postsynaptic potential with EC50 value of 23.4 nM.

Substance Class	Chemical Created by `admin` on `Mon Mar 31 18:31:06 GMT 2025` Edited by `admin` on `Mon Mar 31 18:31:06 GMT 2025`
Record UNII	98LQ6RS0TA
Record Status	`Validated (UNII)`
Record Version

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Name

Type

Language

ROMIFIDINE HCL

Preferred Name

English

ROMIFIDINE HYDROCHLORIDE

Common Name

English

ROMIFIDINE HYDROCHLORIDE [GREEN BOOK]

Common Name

English

2-(2-BROMO-6-FLUOROANILINO)-2-IMIDAZOLINE HYDROCHLORIDE

Systematic Name

English

ROMIFIDINE HYDROCHLORIDE [MI]

Common Name

English

Classification Tree Code System Code

NCI_THESAURUS

C29709