Abstract
Flunitrazepam, 5-(2-fluorophenyl)-1,3-dihydro- l-methyl-7-nitro-2H-1,4-benzodiazepin-2-one, also commonly known as Rohypnol or “roofies,” belongs to a highly potent group of benzodiazepines used mainly as hypnotic, sleeping aid, or preanesthetic agents (1–3). The drug is distributed in 80 countries throughout the world; however, it has never been approved for medicinal use in the United States. It is at present listed as a Schedule IV controlled substance under current U.S. statutes. The drug is smuggled into the United States across the Mexican border or from South American countries through Miami. It is alleged to have been involved in date-rape cases in the 1990s (4–8).
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Sternbach, L. H., Fryer, R. I., Keller, O., Metlesics, W., Sach, G., and Steiger, N. (1963) Quinazolines and 1,4-benzodiazepines. X. Nitro-substituted 5-phenyl-1,4-benzodiazepine derivatives. J. Med. Chem. 6, 261.
Mattila, M. A. K. and Larni, H. M. (1980) Flunitrazepam: a review of its pharmacological properties and therapeutic use. Drugs 20, 353–374.
Baselt, R. C. and Cravey, R. H. (1995) in Disposition of Toxic Drugs and Chemicals in Man, 4th edit. Chemical Toxicology Institute, Foster City, CA, pp. 325–327.
Flunitrazepam. DEA highlights-1995 http://www.usdoj.gov./dea/pubs/rohypnol/ rohypnol.html.
Woods, J. H. and Winger, G. (1997) Abuse liability of flunitrazepam. J. Clin. Psychopharmacol. 17, 1S.
Calhoun, S. H., Wesson, D. R., Galloway, G. P., and Smith, D. E. (1996) Abuse of flunitrazepam (Rohypnol) and benzodiazepines in Austin and South Texas. J. Psychoactive Drugs 28, 183–189.
National Coalition Against Sexual Assault Newsletter (1977) New color-releasing formulation of Rohypnol announced at National NCASA meeting. Cleveland, OH.
Saum, C. A. and Inciardi, J. A. (1997) Rohypnol misuse in the United States. Subst. Use Misuse 32, 723.
Wendt, G. (1976) Schicksal des hypnotikums Flunitrazepam im menschlichen Organismus, in Bisherige Erfahrungen mit Rohypnol (Flunitrazepam) in der Anasthesiologie und Intensivtherapie (Huegin, W., Hossli, G., and Gemperle, M., eds.), Hoffmann-La Roche, Basel, Switzerland, pp. 27–38.
Salamone, S. J., Honasoge, S., Brenner, C., McNally, A. J., Passarelli, J., Goc-Szkutnicka, K., et al. (1997) Flunitrazepam excretion patterns using the Abuscreen OnTrack and On Line Immunoassays: comparison with GC-MS. J. Analyt. Toxicol. 21, 341–345.
Dixon, R. (1981) Specific radioimmunoassay for flunitrazepam. J. Pharmaceut. Sci. 70, 230–231.
Bruhwyler, J. and Hassoun, A. (1992) The use of radioreceptor assays for the determination of benzodiapines in biological samples: a review. J. Analyt. Toxicol. 16, 244–252.
Beck, C., Lafolie, P., Hjemdahl, P., Borg, S., Odelius, G., and Wirbing, P. (1992) Detection of benzodiazepine intake in therapeutic doses by immunoanalysis of urine: two techniques evaluated and modified for improved performance. Clin. Chem. 38, 271–275.
Morland, H. and Smith-Kielland, A. (1997) Urine screening for flunitrazepam: applicability of Emit® immunoassay. Clin. Chem. 43, 1245–1246.
Negrusz, A., Moore, C., Deitermann, D., Lewis, D., Kaleciak, K., Kronstrand, R., et al. (1999) Highly sensitive micro-plate enzyme immunoassay screening and NCI-GC-MS confirmation of flunitrazepam and its major metabolite 7-aminoflunitrzpam in hair. J. Analyt. Toxicol. 23, 429–435.
Walshe, K., Barrett, A. M., Kavanagh, P. V., McNamara, S. M., Moran, C., and Shattock, A. G. (2000) A sensitive immunoassay for flunitrazepam and metabolites. J. Analyt. Toxicol. 24, 296–299.
Haefelfinger, P. (1975) Determination of nanogram amounts of primary aromatic amines and nitro compounds in blood and plasma. J. Chromatogr. 111, 323–329.
Battista, H. J. (1979) Detection of benzodiazepines in forensic chemistry. Beitr. Gerichtl. Med. 37, 5–28.
De Bruyne, M. M. A., Sinnema, A., and Verweij, A. M. A. (1984) Hydrolysis of clonazepam, flunitrazepam and nitrazepam by hydrochloric acid identification of some additional products. Forensic Sci. Int. 24, 125–135.
Van Rooij, H. H., Fakiera, A., and Verrijk, R. (1985) Identification of flunitrazepam and its metabolites in urine sample. Analyt. Chim. Acta. 170, 153–158.
Haefelfinger, P. (1979) Determination of the 7-amino metabolites of the 7-nitroben-zodiazepines in human plasma by thin layer chromatography. J. High Res. Chromatogr. Chromatogr. Commun. 2, 39–42.
Faber, D. B., Kok, R. M., and Remptvan Dijk, E. M. (1977) Quantitative gas chromatographic analysis of flunitrazepam in human serum with electron-capture detection. J. Chromatogr. 133, 319–326.
Cano, J. P., Guintrand, J., Aubert, C., and Aubert, C. (1977) Determination of flunitrazepam, desmethylflunitrazepam and clonazepam in plasma by gas chromatography with an internal standard. Arzneim-Forsch. 27, 338–342.
De Silva, J. A. F., Puglisi, C. V., and Munno, N. (1974) Determination of clonazepam and flunitrazepam in blood by EC-GLC. J. Pharmaceut. Sci. 68, 520–526.
Jochemsen, R. and Breimer, D. D. (1982) Assay of flunitrazepam, tempazepam and desalkylflunitrazepam in plasma by capillary GC with ECD. J. Chromatogr. 227, 199–206.
Lillsunde, P. and Seppala, T. (1990) Simultaneous screening and quantitative analysis of benzodiazepines by dual-channel gas chromatography using electron-capture and nitrogen-phosphorus detection. J. Chromatogr. 533, 97–110.
Maurer, H. and Pfleger, K. (1981) Determination of 1,4- and 1,5-benzodiazepines in urine using a computerized gas chromatographic-mass spectrometric technique. J. Chromatogr. 222, 409–419.
Drouet-Coassolo, C., Aubert, C., Coassolo, P., and Cano, J. P. (1989) Capillary gas chromatographic mass spectrometric method for the identification and quantifica tion of some benzodiazepines and their unconjugated metabolites in plasma. J. Chromatogr. 487, 295–311.
Vree, T. B., Linselbink, B., Van der Klein, E., and Nijhus, G. M. M. (1977) Determination of flunitrazepam in body fluids by means of high performance liquid chromatography. J. Chromatogr. 143, 530–534.
Sumirtapura, Y. C., Aubert, C., Coassolo, P., and Cano, P. J. (1982) Determination of 7-aminoflunitrazepam (Ro 20–1815) and 7-amino-desmethylflunitrazepam (Ro 5–4650) in plasma by high performance liquid chromatography and fluorescence detection. J. Chromatogr. 232, 111–118.
Weijers-Everhard, J. P., Wijker, J., Verrijk, R., Van Rooij, H., and Soudijn, W. (1986) Improved quantitative method for establishing flunitrazepam abuse using urine sample and column liquid chromatography with flurometric detection. J. Chromatogr. 374, 339–346.
West, A., Köhler-Schmidt, H., Baudner, S., and Blaschke, G. (1995) A specific immunoassay for the detection of flunitrazepam. Int. J. Legal. Med. 108, 105–109.
Boukhabza, A., Lugnier, A. A. J., Kintz, P., and Mangin, P. (1991) Simultaneous HPLC analysis of the hypnotic benzodiazepines nitrazepam, estazolam, flunitrazepam, and triazolam in plasma. J. Analyt. Toxicol. 15, 319–322.
Cornelissen, P. J. and Beijersbergen van Henegouwen, G. M. (1979) Photochemical decomposition of 1,4-benzodiazepines. Nitrazepam. Photochem. Photobiol. 30, 337–341.
Berthault, F., Kintz, P., and Mangin, P. (1996) Simultaneous high-performance liquid chromatographic analysis of flunitrazepam and four metabolites in serum. J. Chromatogr. 685, 383–387.
Darius, J. and Banditt, P. (2000) Validated method for the therapeutic drug monitoring of flunitrazepam in human serum using liquid chromatography-atmospheric pressure chemical ionization tandem mass spectrometry with an ion trap detector. J. Chromatogr. 738, 437–441.
Benhamou-Batut, F., Demotes-Mainard, F., Labat, L., Vincon, G., and Bannwarth, B. (1994) Determination of flunitrazepam in plasma by liquid chromatography. J. Pharmaceut. Biomed. Anal. 12, 931–936.
McIntyre, I. M., Syrjanen, M. L., Crump, K., Horomidis, S., and Peace, A. W. (1993) Simultaneous HPLC gradient analysis of 15 benzodiazepines and selected metabolites in postmortem blood. J. Analyt. Toxicol. 17, 202–207.
Chen, X. H., Franke, J. P., van Veen, J., Wijsbeek, J., and de Zeeuw, R. A. (1990) Solid-phase extraction for the screening of acidic, neutral and basic drugs in plasma using a single-column procedure on Bond Elut Certify. J. Chromatogr. 529,161–166.
Moore, C. M. (1990) Solid phase cation exchange extraction of basic drugs from urine of racing greyhounds. J. Forensic Sci. Soc. 30, 123–129.
He, W. and Parissis, N. (1997) Simultaneous determination of flunitrazepam and its metabolites in plasma and urine by HPLC/DAD after solid phase extraction. J. Pharmaceut. Biomed. Anal. 16, 707–715.
Reynolds, J. E. F. ed. (1993) Martindale, The Extra Pharmacopoeia, 30th edit. Pharmaceutical Press, London, pp. 595.
Nguyen, N. and Nau, D. R. (2000) Rapid method for the solid-phase extraction and GC-MS analysis of flunitrazepam and its major metabolites in urine. J. Analyt. Toxicol. 24, 37–45.
Guichard, J., Panteix, G., Dubost, J., Baltassat, P., and Roche, C. (1993) Simultaneous high-performance liquid chromatographic assay of droperidol and flunitrazepam in human plasma. Application to haemodilution blood samples collected during clinical anaesthesia. J. Chromatogr. 612, 269–275.
Bogusz, M. J., Maier, R.-D., Krüger, K.-D., and Früchtnicht, W. (1998) Determination of flunitrazepam and its metabolites in blood by high-performance liquid chromatography-atmospheric pressure chemical ionization mass spectrometry. J. Chromatogr. 713, 361–369.
Deinl, I., Mahr, G., and von Meyer, L. (1998) Determination of flunitrazepam and its main metabolites in serum and urine by HPLC after mixed-mode solid-phase extraction. J. Analyt. Toxicol. 22, 197–202.
Deinl, I., Angermaier, L., Franzelius, C., and Machbert, G. (1997) Simple high-performance liquid chromatographic column-switching technique for the on-line immunoaffinity extraction and analysis of flunitrazepam and its main metabolites in urine. J. Chromatogr. 704, 251–258.
Deinl, I., Franzelius, C., Angermaier, L., Mahr, C., and Machbert, G. (1999) Online immunoaffinity extraction and HPLC analysis of flunitrazepam and its main metabolites in serum. J. Analyt. Toxicol. 23, 598–602.
ElSohly, M. A., Feng, S., Salamone, S. J., and Wu, R. (1997) A sensitive procedure for the analysis of flunitrazepam and its metabolites in urine. J. Analyt. Toxicol. 21, 335–340.
ElSohly, M. A., Feng, S., Salamone, S. J., and Brenneisen, R. (1999) GC—MS determination of flunitrazepam and its major metabolites in whole blood and plasma. J. Analyt. Toxicol. 23, 486–489.
Elian, A. A. (1999) Detection of low levels of flunitrazepam and its metabolites in blood and bloodstains. Forensic Sci. Int. 101, 107–111 (1999).
Cirimele, V., Kintz, P., Staub, C., and Mangin, P. (1997) Testing human hair for flunitrazepam and 7-amino-flunitrazepam by GC/MS-NCI. Forensic Sci. Int. 84,189–200.
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2001 Springer Science+Business Media New York
About this chapter
Cite this chapter
ElSohly, M.A., Feng, S. (2001). Analysis of Flunitrazepam and Its Metabolites in Biological Specimens. In: Salamone, S.J. (eds) Benzodiazepines and GHB. Forensic Science and Medicine. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-59259-109-1_3
Download citation
DOI: https://doi.org/10.1007/978-1-59259-109-1_3
Publisher Name: Humana Press, Totowa, NJ
Print ISBN: 978-1-61737-287-2
Online ISBN: 978-1-59259-109-1
eBook Packages: Springer Book Archive