Matula Tea is not very cheap and I couldn't find such a medical name regarding to it's components. Actually it's a company's big secret, the components but...
Please read this: http://www.pau-d-arco.com/
And who is not a believer to the mentioned site, please read following as well to make your mind about Matula Tea main ingredient - PAU D'ARC0 TEA. By the way, you can buy PAU D'ARC0 TEA and mix it with Yerba Mate tea yourself and it cost 10-20 times cheaper than Matula at any Natural store.
Please read official researches done on main ingredient of D'Arco -lapachol, but sign up first to that site:
Or read this research:
> >> > 2008;
> >> > 118(3):455-9 (ISSN: 0378-8741)Twardowschy A; Freitas CS; Baggio CH; Mayer B; dos Santos AC; Pizzolatti MG; Zacarias AA; dos Santos EP; Otuki MF; Marques MC
> >> > Department of Pharmacology, Universidade Federal do Paraná, PR, Brazil.
> >> > Tabebuia
> >> > avellanedae is commonly used for the treatment of peptic ulcers. We
> >> > carried out this study with the ethanolic extract of bark from Tabebuia
> >> > avellanedae (EET) (30-1000 mg/kg) to determine its gastroprotective
> >> > activity and to clarify the pathways involved in this effect. Acute
> >> > gastric ulceration in rats was produced by oral administration of
> >> > ethanol and ibuprofen. After ethanol administration, the gastric wall
> >> > mucus was examined. Chronic gastric ulceration was produced by
> >> > injection of acetic acid in rat gastric subserosa. Anti-secretory
> >> > studies were undertaken using Shay rat pylorus ligature technique and
> >> > measurement of enzymatic activity of H+, K+-ATPase in vitro.
> >> > Administration of EET p.o. or i.p. significantly inhibited gastric
> >> > mucosa damage induced by ethanol and ibuprofen. The anti-ulcer effect
> >> > was further confirmed by enhanced gastric mucus production. In pylorus
> >> > ligature rats, EET significantly reduced the basal gastric acid
> >> > secretion and total acidity; moreover, it inhibited the increase in
> >> > total acidity induced by histamine. In addition, EET reduced the
> >> > activity of H+, K+, ATPase. The results obtained in the present
> >> > pharmacological assay indicate that this plant has a protective action
> >> > against gastric lesions, involving the maintenance of protective
> >> > factors, such as mucus and prostaglandin, besides the reduction of
> >> > gastric total acidity.