[1. Agostia R. et al.: Effectiveness of Petasites hybridus preparations in the prophylaxis of migraine: A systematic review. Phytomed., 13, 743, 2006.10.1016/j.phymed.2006.02.008]Search in Google Scholar
[2. Aydin A.A. et al.: The medical plant butterbur (Petasites): analytical and physiological (re)view. J. Pharm. Biomed. Anal., 75, 220, 2013.10.1016/j.jpba.2012.11.028]Search in Google Scholar
[3. Aydin A.A., Letzel T.: Simultaneous investigation of sesquiterpenes, pyrrolizidine alkaloids and N-oxides in Butterbur (Petasites hybridus) with an offline 2D-combination of HPLC-UVandLCMMI- ToF-MS. J. Pharm. Biomed. Anal., 85, 74, 2013.]Search in Google Scholar
[4. Blumenthal M., editor (1998). The Complete German Commission E Monographs. Austin, TX: American Botanical Council.]Search in Google Scholar
[5. Broda B., Mowszowicz J., editors (2000). Przewodnik do oznaczania roślin leczniczych, trujących i użytkowych. Warszawa: Polskie Wydawnictwo Lekarskie PZWL.]Search in Google Scholar
[6. Brune K. et al.: Europaeische Patentanmeldung 0-281-656 vom. 19.09.88. Europaeisches Patentamt: Patentblatt 88/37 (1988).]Search in Google Scholar
[7. Brune K., Bickel D., Peskar B.A.: Gastro-protective effects by extracts of Petasites hybridus: the role of inhibition of peptido-leukotriene synthesis. Planta. Med., 59, 494, 1993.]Search in Google Scholar
[8. Bucher, K.: Uber ein antispastisches Prinzip in Petasites officinalis Moench. Arch. Exp. Path. Pharmacol., 213, 69, 1950.]Search in Google Scholar
[9. Bull L.B., Dick A.T., McKenzie J.S.: The acute toxic effects of heliotrine and lasio- carpine and their n-oxides, on the rat. J. Path. Bact., 75, 17, 1958.10.1002/path.1700750104]Search in Google Scholar
[10. Bull L.B., Dick A.T.: The chronic pathological effects on the liver of the rat of the pyrrolizidine alkaloids heliotrine, lasiocarpine and their n-oxides. J. Path. Bact., 78, 483, 1959.10.1002/path.1700780215]Search in Google Scholar
[11. Cherniawsky D.M., Bayer R.J.: Systematics of North American Petasites (Asteraceae: Senecioneae). I. Morphometric analyses. Can. J. Bot., 76, 23, 1998.]Search in Google Scholar
[12. Cherniawsky D.M., Bayer R.J.: Systematics of North American Petasites (Asteraceae: Senecioneae). III. A taxonomic revision. Can. J. Bot., 76, 2061, 1998.]Search in Google Scholar
[13. Debrunner B., Meier B.: Petasites hybridus: a tool for interdisciplinary research in phytotherapy. Pharm. Acta. Helv., 72(6), 359, 1998.10.1016/S0031-6865(97)00027-7]Search in Google Scholar
[14. Eaton J.: Butterbur, herbal help for migraine. Nat. Pharm., 2(1), 23, 1998.]Search in Google Scholar
[15. Fiebich B.L. et al.: Petasites hybridus extracts in vitro inhibit COX-2 and PGE2 release by direct interaction with the enzyme and by preventing p42/44 MAP kinase activation in rat primary microglial cells. Planta. Med., 71, 12, 2005.10.1055/s-2005-83774415678367]Search in Google Scholar
[16. Grossman W., Schmidramsl H.: An extract of Petasites hybridus is effective in the prophylaxis of migraine. Altern. Med. Rev., 6, 303, 2001.]Search in Google Scholar
[17. Grossmann W.M., Schmidramsl H.: An extract of Petasites hybridus is effective in the prophylaxis of migraine. Int. J. Clin. Pharmacol. Ther., 38, 430, 2000.]Search in Google Scholar
[18. Jennings N.L., editor (2008). Coastal Beauty: Wildflowers and Flowering Shrubs of Coastal British Columbia and Vancouver Island. Calgary: Rocky Mountain Books.]Search in Google Scholar
[19. Ko W.C. et al.: Mechanisms of relaxant-action of S-petasin and S-isopetasin, sesquiterpenes of Petasites formosanus in isolated guinea pig trachea. Planta. Med., 67, 224, 2001.10.1055/s-2001-1199111345692]Search in Google Scholar
[20. Kwaśniewska J.: Podbiał (Tussilago L.) a lepiężnik (Petasites Mill.). Ziel. Biul. Inf., 10(1), 11, 1958.]Search in Google Scholar
[21. Lee K.P. et al.: Therapeutic Effects of S-Petasin on Disease Models of Asthma and Peritonitis. Biomol. Ther., 23(1), 45, 2015.10.4062/biomolther.2014.069428674925593643]Search in Google Scholar
[22. Lipton R.B. et al.: Petasites hybridus root (butterbur) is an effective preventive treatment for migraine. Neurol., 63, 2240, 2004.10.1212/01.WNL.0000147290.68260.11]Search in Google Scholar
[23. Mauskop A., Grossmann W.M., Schmidramsl H.: Petasites hybridus (butterbur root) extract is effective in the prophylaxis of migraines. Results of a randomized, double-blind trial. J. Head. Face. Pain., 40, 4, 2000.]Search in Google Scholar
[24. Mauskop A.: Petasites hybridus: an ancient medicinal plant is an effective prophylactic treatment for migraine. Townsend. Lett., 202, 104, 2000.]Search in Google Scholar
[25. Ożarowski M., Przystanowicz J., Adamczak A.: Phytochemical, pharmacological and clinical studies of Petasites hybridus (L.) P. Gaertn., B. Mey. & Scherb. A review. Herb. Pol., 59(4), 108, 2013.10.2478/hepo-2013-0028]Search in Google Scholar
[26. Preston C.D., Pearman D.A., Dines T.D., editors (2002). New Atlas of the British and Irish Flora. Oxford: Oxford University Press.]Search in Google Scholar
[27. Rutkowski L., editor (1998). Klucz do oznaczania roślin naczyniowych Polski niżowej. Warszawa: Wydawnictwo Naukowe PWN.]Search in Google Scholar
[28. Ryan R.E.: A new preparation for the interval treatment of migraine. Headache, 11, 6, 1971.10.1111/j.1526-4610.1971.hed110106.x5554982]Search in Google Scholar
[29. Shih C.H. et al.: S-petasin, the main sesquiterpene of Petasites formosanus, inhibits phosphodiesterase activity and suppresses ovalbumin-induced airway hyperresponsiveness. Evid. Bas. Complem. Alternat. Med., 4, 132, 2011.]Search in Google Scholar
[30. Siniatchkin M., Gerber W.D., Vein A.: Clinical efficacy and central mechanisms of cyclandelate in migraine: a double-blind placebo controlled study. Funct. Neurol., 13, 47, 1998.]Search in Google Scholar
[31. Soyka D., Östreich W.: Flunarizine vs. propanolol in the interval treatment of migraine: A multi-center, double-blind study from practicing general medical doctors and internists. Nervenheilkunde, 19, 45, 1990.]Search in Google Scholar
[32. Szafer W., Kulczyński S., Pawłowski B., editors (1986). Rośliny Polskie vol. II. Warszawa: Wydawnictwo Naukowe PWN.]Search in Google Scholar
[33. Tan K. et al.: On a new Petasites species from the southern Pindos (Greece). Phytol. Balcan., 16(2), 243, 2010.]Search in Google Scholar
[34. Tfelt P. et al.: Timonol vs propanolol in common migraine prophylaxis. A double-blind multi-center trial. Acta. Neuol. Scand., 69, 1, 1984.10.1111/j.1600-0404.1984.tb07772.x6367336]Search in Google Scholar
[35. Thomet O.A.R. et al.: Differential inhibition of inflammatory effector functions by petasin, isopetasin and neopetasin in human eosinophils. Clin. Exp. Allergy., 31, 1310, 2001.10.1046/j.1365-2222.2001.01158.x11529903]Search in Google Scholar
[36. Toman J.: A taxonomic survey of the genera Petasites and Endocellion. Folia. Geobot. Phytotax., 7, 381, 1972.10.1007/BF02854767]Search in Google Scholar
[37. Uziębło A.K. (2004). Subalpine populations of Petasites kablikianus Tausch ex. Bercht. in the Babia Góra and in the Karkonosze National Parks. In: Geoekologické problémy Krkonoš. Štursa J., Mazurski K.R., Palucki A., Potocka J. (editors). Opera Corcontica; p. 135.]Search in Google Scholar
[38. Uziębło A.K.: Petasites kablikianus Tausch ex Berchtold as a pioneer species and its abilities to colonise initial habitats. Pr. N. U. Ś., 2886, 1, 2011.]Search in Google Scholar
[39. Wang Y.L. et al.: Bakkenolides from Petasites tricholobs and their neuroprotective effects related to antioxidant activities. Planta. Med.,75, 230, 2009.10.1055/s-0028-108837719085813]Search in Google Scholar
[40. Wang Y.L., Guo M., Wang Y.: Quality evaluation of Petasites tricholobus through simultaneous determination of four bioactive bakkenolides by LC. Chromatograph., 70, 1367, 2009.]Search in Google Scholar
[41. Wang, G.J. et al.: Ca2+ channel blocking effect of iso-S-petasin in rat aortic smooth muscle cells. Eur. J. Pharmacol., 445, 239, 2002.]Search in Google Scholar
[42. Weerasuriya K., Patel L., Turner P.: Beta-adreno-receptor blockade and migraine. Cephalalg., 2, 33, 1982.]Search in Google Scholar
[43. Wildi E. et al.: Quantitative analysis of petasin and pyrrolizidine alkaloids in leaves and rhizomes of in situ grown Petasites hybridus plants. Plant. Med. 64, 264, 1998.10.1055/s-2006-95742217253240]Search in Google Scholar
[44. Wu S.N., Chen H., Lin Y.L.: The mechanism of inhibitory actions of S-petasin, a sesquiterpene of Petasites formosanus, on L-type calcium current in NG108-15 neuronal cells. Planta. Med., 69, 118, 2002.]Search in Google Scholar
[45. Yuzuri I., Wataru N.: New Japanese Butterbur Variety with High Yield and High Quality. Breed. Sci., 57(3), 249, 2007.10.1270/jsbbs.57.249]Search in Google Scholar
[46. Zając A., Zając M., editors (2001). Atlas rozmieszczenia roślin naczyniowych w Polsce. Kraków: Pracownia Chorologii Komputerowej Instytutu Botaniki Uniwersytetu Jagiellońskiego.]Search in Google Scholar
[47. Zioło G, Samochowiec L.: Study on clinical properties and mechanism of action of Petasites in bronchial asthma and chronic obstructive bronchitis. Pharmaceut. Act. Helv., 72, 359, 1998. ]Search in Google Scholar