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Systematic (IUPAC) name
Clinical data
Pregnancy cat.
  • ?
Legal status
Routes Oral
Pharmacokinetic data
Bioavailability ?
Metabolism Hepatic
Half-life ?
Excretion Renal
CAS number  YesY
ATC code N05
ChemSpider  YesY
Chemical data
Formula C16H12ClFN2O 
Mol. mass 302.7

Fludiazepam was developed by Hoffman-LaRoche in the 1960s[1] and is marketed in Japan and Taiwan in 0.25mg tablets under the brand name Erispan[2][3] is a drug which is a benzodiazepine derivative and is closely related to diazepam.[4] It exerts its pharmacological properties via enhancement of GABAergic inhibition.[5] Fludiazepam has 4 times more binding affinity for benzodiazepine receptors than diazepam.[6] It possesses anxiolytic,[7][8][9] anticonvulsant, sedative, hypnotic and skeletal muscle relaxant properties.[10]

Fludiazepam has drug abuse potential.[11]

See also


  1. ^ US Patent 3299053 -ARYL-JH-L,X-BENZODIAZEPIN-Z(LH)-ONES
  2. ^ Su, TP.; Chen, TJ.; Hwang, SJ.; Chou, LF.; Fan, AP.; Chen, YC. (Aug 2002). "Utilization of psychotropic drugs in Taiwan: an overview of outpatient sector in 2000.". Zhonghua Yi Xue Za Zhi (Taipei) 65 (8): 378–91.  
  3. ^ "Benzodiazepine Names". Retrieved 2008-12-29. 
  4. ^ Neville, GA.; Beckstead, HD.; Shurvell, HF. (Feb 1994). "A Fourier transform-Raman and infrared vibrational study of delorazepam, fludiazepam, flurazepam, and tetrazepam.". J Pharm Sci 83 (2): 143–51.  
  5. ^ Tsuchiya, T.; Fukushima, H. (Apr 1978). "Effects of benzodiazepines and pentobarbitone on the gaba-ergic recurrent inhibition of hippocampal neurons.". Eur J Pharmacol 48 (4): 421–4.  
  6. ^ Nakatsuka, I.; Shimizu, H.; Asami, Y.; Katoh, T.; Hirose, A.; Yoshitake, A. (Jan 1985). "Benzodiazepines and their metabolites: relationship between binding affinity to the benzodiazepine receptor and pharmacological activity.". Life Sci 36 (2): 113–9.  
  7. ^ Okada, S.; Ichiki, K.; Tanokuchi, S.; Ishii, K.; Hamada, H.; Ota, Z. (1994). "Effect of an anxiolytic on lipid profile in non-insulin-dependent diabetes mellitus.". J Int Med Res 22 (6): 338–42.  
  8. ^ Okada, S.; Ichiki, K.; Tanokuchi, S.; Ishii, K.; Hamada, H.; Ota, Z. (1995). "Improvement of stress reduces glycosylated haemoglobin levels in patients with type 2 diabetes.". J Int Med Res 23 (2): 119–22.  
  9. ^ Okada, S.; Ichiki, K.; Tanokuchi, S.; Ishii, K.; Hamada, H.; Ota, Z. (1995). "How blood pressure in patients with non-insulin-dependent diabetes mellitus is influenced by stress.". J Int Med Res 23 (5): 377–80.  
  10. ^ Inoue, H.; Maeno, Y.; Iwasa, M.; Matoba, R.; Nagao, M. (Sep 2000). "Screening and determination of benzodiazepines in whole blood using solid-phase extraction and gas chromatography/mass spectrometry.". Forensic Sci Int 113 (1-3): 367–73.  
  11. ^ Shimamine, M.; Masunari, T.; Nakahara, Y. (1993). "[Studies on identification of drugs of abuse by diode array detection. I. Screening-test and identification of benzodiazepines by HPLC-DAD with ICOS software system]". Eisei Shikenjo Hokoku (111): 47–56.  

External links

  • (Japanese) Erispan フルジアゼパム錠,細粒 (PDF) Dainippon Sumitomo Pharma. November 2005.
  • (Japanese) Official Dainippon Sumitomo Pharma Website

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