• Fraitag, B. et al., Gastroenterol. Clin. Biol., 1992, 16, 413, (rev)
• Negwer, M., Organic-Chemical Drugs and their Synonyms, 6th edn., Akademie-Verlag, 1987, 6665
• Lewis, R.J., Sax's Dangerous Properties of Industrial Materials, 8th edn., Van Nostrand Reinhold, 1992, TKU650; TKU675
• Martindale, The Extra Pharmacopoeia, 30th edn., Pharmaceutical Press, 1993, 1423
• U.K. Pat., 1972, 1 342 547; CA, 78, 58079j, (synth)