Abstract: The present invention provides compounds of the general formula: ##STR1## where R.sub.1 is a hydrogen atom or a methoxy or ethoxy radical and R.sub.2 and R.sub.3 are hydrogen atoms or R.sub.2 and R.sub.3 together represent an aromatic carbon-carbon bond and R.sub.1 is a hydrogen atom, a hydroxyl group or an ethoxy radical; and the pharmaceutically acceptable salts thereof.The present invention also provides processes for the preparation of these compounds and pharmaceutical compositions containing them, as well as their use in therapy.

Abstract: The present invention provides a process for the preparation of substantially pure silibinin from the fruit of Silybum marianum, as well as pharmaceutical compositions containing it for the treatment of diseases of the liver.

Abstract: A method for preparing azoniaspironotropanol esters, esters thus produced, and methods of use for these is disclosed. The esters are effective as broncholytics and as agents in therapy of asthmatic conditions.

Abstract: The present invention provides compounds of the general formula: ##STR1## wherein R.sub.1 is a hydrogen atom or a methoxy or ethoxy radical and R.sub.2 and R.sub.3 are hydrogen atoms or R.sub.2 and R.sub.3 together represent an aromatic carbon-carbon bond and R.sub.1 is a hydrogen atom, a hydroxyl group or an ethoxy radical; and the pharmaceutically acceptable salts thereof.The present invention also provides processes for the preparation of these compounds and pharmaceutical compositions containing them, as well as their use in therapy.

Abstract: The invention provides a novel acidic alkali citrate having the formula K.sub.6 Na.sub.6 H.sub.3 (C.sub.6 0.sub.7 H.sub.5).sub.5 . 2-4 H.sub.2 O made by dissolving either(a) trisodium citrate.times.2 H.sub.2 O, tripotassium citrate.times.1 H.sub.2 O, and citric acid in a mole ratio of 2:2:1 in 3 to 5 times the quantity by weight of boiling demineralized water, based on the weight of the citric acid and maintaining the solution at a temperature not lower than 60.degree. C.; or(b) citric acid at 90.degree. C. while stirring in .01 to 1 times its weight of demineralized water and then adding sodium carbonate and potassium carbonate to give a mole ratio of 3:3:5 of sodium carbonate: potassium carbonate:citric acid,and quick drying the homogeneous solution obtained. Therapeutic agents for the treatment of urolithiasis and removal, or preventing recurrence, of urine stones comprising said acidic alkali citrate are provided.

Abstract: Laxative compositions having particularly mild and well-tolerated action, not accompanied by toxic or side-effects, based on psyllium seeds and senna fruits are prepared by mixing separately ground psyllium seeds and senna fruits in a dry state, moistening the resulting ground mixture rapidly and uniformly with water, quickly granulating the resulting mixture and drying same in a manner preventing substantial swelling of the product to a residual moisture content of no more than 3.5% and then coating the composition with a pharmacologically acceptable material.

Abstract: The invention provides a novel acidic alkali citrate having the formula K.sub.6 Na.sub.6 H.sub.3 (C.sub.6 O.sub.7 H.sub.5).sub.5.2-4 H.sub.2 O made by dissolving either(a) trisodium citrate.times.2 H.sub.2 O, tripotassium citrate.times.1 H.sub.2 O, and citric acid in a mole ratio of 2:2:1 in 3 to 5 times the quantity by weight of boiling dimineralized water, based on the weight of the citric acid and maintaining the solution at a temperature not lower than 60.degree. C.; or(b) citric acid at 90.degree. C. while stirring in 0.1 to 1 times its weight of demineralized water and then adding sodium carbonate and potassium carbonate to give a mole ratio of 3:3:5 of sodium carbonate:potassium carbonate:citric acid,and quick drying the homogeneous solution obtained. Therapeutic agents for the treatment of urolithiasis and removal, or preventing recurrence, of urine stones comprising said acidic alkali citrate are provided.

Abstract: This invention is directed to an improved method for the extraction of silymarin (silymarin I-IV), in which a large part of the oil is removed from the fruits of Silybum marianum by cold pressing, the compressed mass is broken up, the pressed residue in extracted with ethyl acetate and the ethyl acetate extract is evaporated and processed.

Abstract: Aristolochic acids are obtained from aristolochic plant species by alkaline extraction, comprising:(a) extracting the aristolochic plant species in slightly alkaline medium;(b) acidifying the extract;(c) dissolving the precipitate in an organic solvent immiscible with water;(d) extracting the obtained solution with aqueous alkali;(e) acidifying the extract; and(f) separating and optionally recrystallizing the precipitated product.

Abstract: A new compound, viz., aluminum polyhydroxysulfate hydrate of the formula [Al.sub.7 (OH).sub.17 (SO.sub.4).sub.2 .multidot. n H.sub.2 O] where n equals 10-15, preferably 12, has been found to have outstanding therapeutic value in the treatment of urinary stones; the invention thus provides methods of treating phosphate conditions in the urinary passage and compositions for such treatment comprising said new aluminum compound.

Abstract: A basic aluminum hydroxycarbonate hydrate, usable as an antacid, is prepared by simultaneously adding aqueous solutions of aluminum sulfate and alkali hydrogen carbonate or alkali carbonate to water while maintaining a neutral or weakly alkaline pH and adjusting the pH-value of the reaction mixture, after completed precipitation, to about 6.0 by adding an aluminum salt of a strong acid.