
Health Dictionary
Reliable, easy-to-read patient information on common medical conditions β written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Diphenylpyraline
Introduction
Overview
Overview
Diphenylpyraline (DPP; sold as Allergen, Arbid, Belfene, Diafen, Hispril, Histyn, Lergobine, Lyssipol, Mepiben, Neargal) is a first-generation antihistamine with anticholinergic effects of the diphenylpiperidine class.[2][3][4] It is marketed in Europe for the treatment of allergies.[2][3][5] DPP has also been found to act as a dopamine reuptake inhibitor and produces hyperactivity in rodents.[6] It has been shown to be useful in the treatment of Parkinsonism.[7]
Chemistry
Chemistry
Diphenylpyraline, 4-diphenylmethoxy-1-methylpiperidine, is synthesized by alkylating 4-hydroxy-1-methylpiperidine with benzhydrylbromide.

References
References
- β Graham G, Bolt AG (June 1974). “Half-life of diphenylpyraline in man”. Journal of Pharmacokinetics and Biopharmaceutics. 2 (3): 191β5. doi:10.1007/BF01059761. PMIDΒ 4156058.
- β 2.0 2.1 Swiss Pharmaceutical Society (2000). Index Nominum 2000: International Drug Directory (Book with CD-ROM). Boca Raton: Medpharm Scientific Publishers. ISBNΒ 3-88763-075-0.
- β 3.0 3.1 Puhakka H, Rantanen T, Virolainen E (1977). “Diphenylpyraline (Lergobine) in the treatment of patients suffering from allergic and vasomotor rhinitis”. J Int Med Res. 5 (1): 37β41. PMIDΒ 14039.
- β Kubo N, Shirakawa O, Kuno T, Tanaka C (March 1987). “Antimuscarinic effects of antihistamines: quantitative evaluation by receptor-binding assay”. Japanese Journal of Pharmacology. 43 (3): 277β82. doi:10.1254/jjp.43.277. PMIDΒ 2884340.
- β Hruby, Victor J.; Ruben Vardanyan; Vardanyan, ΫRuben (2006). Synthesis of essential drugs. Amsterdam: Elsevier. ISBNΒ 0-444-52166-6.
- β Lapa G, Mathews T, Harp J, Budygin E, Jones S (2005). “Diphenylpyraline, a histamine H1 receptor antagonist, has psychostimulant properties”. Eur J Pharmacol. 506 (3): 237β40. doi:10.1016/j.ejphar.2004.11.017. PMIDΒ 15627433.
- β Ohno T, Kobayashi S, Hayashi M, Sakurai M, Kanazawa I (2001). “Diphenylpyraline-responsive parkinsonism in cerebrotendinous xanthomatosis: long-term follow up of three patients”. J Neurol Sci. 182 (2): 95β7. doi:10.1016/S0022-510X(00)00441-X. PMIDΒ 11137513.
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
